Abattoir Workers Research Articles

Seroprevalence and Risk Factors of Brucellosis in Abattoir Workers in Fars Province, Iran

Background & Objectives: Brucellosis remains an important occupational zoonotic disease, especially in developing countries. The disease is endemic in Iran and the Fars province. One of the main routes of brucellosis infection is at slaughterhouses, where the workers directly contact infected animals. This study was designed to estimate the seroprevalence of brucellosis among slaughterhouse workers in the Fars province, Iran. Materials & Methods: Ninety blood samples were collected from workers of two livestock slaughterhouses (Marvdasht and Kazeroon), in Fars, Iran. The sera were assessed for the Rose Bengal test (RBT), as a screening test for brucellosis, and the positive samples were subjected to the Wright test. The positive Wright samples were finally tested for the 2 -mercaptoethanol (2 -ME) agglutination test. Results: Brucellosis prevalence was 13.33% using RBT and 4.44% of the workers showed active brucellosis. No significant relationship was found between the questionnaire variables and brucellosis tests; exceptionally, there was a relationship between the workers' statements regarding having had brucellosis and RBT (P=0.01). Conclusion : Our study highlights the practical application of serological tests, including RBT, Wright, and 2 - ME as a simple strategy to monitor brucellosis and to diagnose and treat its active form in endemic regions. Although a small frequency of the disease was found, it could cause significant health and economic damage to humans and animals in endemic areas. Furthermore, taking enough protective measures is highly recommended for slaughterhouse workers to prevent human brucellosis.

Molecular detection and antimicrobial resistance profile of Salmonella isolated from humans, animals, abattoir equipment and environment

Abattoir environments and poor slaughtering practices could serve as source of contamination with Salmonella species and their antimicrobial resistant genes, thereby affecting the animal-origin food system, and public health. This study aimed to isolate, and molecularly detect Salmonella species from humans, slaughtered animals, and from slaughtering equipment and environment, as well as to assess antimicrobial resistance profile of Salmonella isolates. A cross-sectional study was conducted at three abattoir settings, from September 2020 to February 2021. A total of 240 pooled swab samples were collected from the hands and cloths of abattoir workers, slaughtering areas, knives and from carcass; including water samples. Bacteriological techniques were employed to isolate presumed Salmonella species; while conventional and multiplex polymerase chain reactions (PCRs) were performed to confirm the genus Salmonella, Salmonella Enteritidis and S. Typhimurium. The Kirby-Buaer disk diffusion method was used to test antimicrobial susceptibility of confirmed Salmonella isolates. Based on bacteriological and biochemical tests, an overall 9.2 %(22/240) of Salmonella species were isolated, out of which 40.9 %(9/22) were found containing histidine transport operon gene. Among the nine Salmonella isolates, eight, six, six, five, and four isolates were found resistant to ampicillin, cefoxitin, tetracycline, Co-trimoxazole, and doxycycline hydrochloride, respectively. Furthermore, six of the Salmonella isolates showed multidrug resistance. The study showed presence of potential contamination of abattoir settings with antimicrobial resistant Salmonella isolates. With existing poor hygiene and sanitation practices, this might indicate risks for people consuming meat and for animals having access to contaminated environments.

Detection and antibiogram profile of diarrheagenic Escherichia coli isolated from two abattoir settings in northwest Ethiopia: a one health perspective

BackgroundDiarrheagenic Escherichia coli (E. coli) is a zoonotic pathogen that contaminates abattoir workers, slaughter environments, slaughter equipment, and carcasses during abattoir processing. Infection with E. coli is associated with the consumption of contaminated food and water, and it is a potential threat to the health and welfare of both humans and animals. Hence, this study aimed to detect diarrheagenic E. coli and assess its antibiogram profile in two abattoir settings, in one health lens.MethodsA cross-sectional study in one health approach was conducted from December 2020 to June 2021. A total of 384 samples from abattoir workers’ hands, carcasses, knives, cattle feces, abattoir water and effluents were collected. Bacterial culture and biochemical tests were conducted to isolate E. coli, while conventional polymerase chain reaction was performed to identify virulence genes. The antibiogram of diarrheagenic E. coli was tested against nine antimicrobials using the Kirby Bauer disk diffusion method.ResultsA total of 115 (29.95%) E. coli were isolated from the 384 samples, and from these isolates, about 17 (14.8%) were confirmed to be diarrheagenic E. coli (DEC). Among the DEC pathotypes, nine (52.94%), five (29.4%), and three (17.65%) were Shiga toxin-producing, enterohemorrhagic, and enterotoxigenic E. coli, respectively. While 14 (82.35%) DEC isolates harbored the stx2 gene, five (29.41%) the eae gene, five (29.41%) the hlyA gene and three (17.65%) harbored the st gene. All the DEC isolates were resistant to erythromycin and vancomycin; whereas, they were susceptible to ampicillin, nalidixic acid and norfloxacin. Furthermore, 64.7% of DEC isolates showed resistance to both ceftazidime and kanamycin and 88.24% of the isolates showed multidrug resistance.ConclusionThis study detected DEC isolates having different virulence genes, which showed single and multiple antimicrobial resistance. Given the existing poor hygienic and sanitary practices along the abattoir-to-table food chain, coupled with the habit of raw meat consumption, this result indicates a potential public and animal health risk from the pathogen and antimicrobial resistance.

Southern Queensland general practitioners' knowledge and attitudes towards Q fever and behaviours in the management of the disease.

Q fever (QF) is a zoonotic disease caused by Coxiella burnetii, often associated with abattoir workers and farmers. Recent analysis suggests that QF might occur more frequently in urban areas. This study ascertains the knowledge of, and attitudes towards, QF and behaviours in the management of QF among general practitioners (GPs) across rural and urbanareas. This cross-sectional survey study targeted GPs working in regional Queensland. GPswere asked to complete a 59-item questionnaire. Logistic regression wasused to compare respondent demographics with attitude ratings andknowledge scores. Diagnosing a patient with QF was significantly related to practitioner age, years in practice and practising in a ruralarea. This study shows gaps in GP QF knowledge, particularly around QF management. With increased urbanisation of rural areas potentially leading to increases in acute QF cases, GPs need to improve their knowledge ofthis disease.

Epidemiologic Features and Risk Factors for Crimean-Congo Hemorrhagic Fever in Dhi Qar Province, Iraq.

Crimean-Congo hemorrhagic fever virus (CCHFV) is endemic in Iraq, where recurrent epidemics have been constantly observed during the last five years. The present study aimed to determine the factors associated with Crimean-Congo hemorrhagic fever (CCHF) cases in Dhi Qar province during the year 2022. A test-negative case-control design was used to analyze 621 CCHF patients, of which 162 were confirmed and 459 were suspected cases. To identify the confirmed and suspected cases, reverse transcriptase polymerase chain reaction (RT-PCR) was used. Suspected patients whose PCR test results were negative were selected as the control group. Data on potential risk factors for CCHF were collected as existing data for previous years for the same geographical locations in Dhi Qar province. Logistic regression analyses were used to determine the correlation between probable risk factors and confirmed CCHF cases. The incidence rate of CCHF was 6.8% per 100,000 people. The total number of deaths was 48 for patients with a case fatality rate of 7.7%. The patients' ages ranged from one year to 65 years, with an overall mean ± SD of 36.08 ± 18.29 years. A total of 98.2% of the patients were between 15 and 65 years of age; 58% of the reported patients were male, and the male-to-female ratio was 1.4:1. Additionally, contact with raw meat, animal contact, and tick bite had the highest percentages for CCHF positivity cases. Male gender, high-risk jobs like housewives, health staff, shepherds, butchers, animal dealers, slaughterhouse workers, veterinary staff, and farmers, tick bites, and contact with raw meat were statistically significant predictors for increasing CCHF incidence in Dhi Qar province during the year 2022.

Seroprevalence and Risk Factors Associated with Leptospirosis in High-Risk Occupational Groups in the State of Gujarat as Determined by IgM ELISA and MAT Test: A Cross-Sectional Study.

Leptospirosis is a reemerging zoonosis affecting humans and animals worldwide in tropical and subtropical countries. The study was conducted to estimate the seroprevalence of leptospirosis in high-risk occupational groups (cattle farm workers, poultry farm workers, and slaughterhouse workers) in the state of Gujarat and to determine related risk factors for leptospirosis. Using an interview-guided questionnaire, a cross-sectional study was conducted involving 123 people in high-risk occupational groups (namely, cattle farm workers, poultry farm workers, and slaughterhouse workers) from five districts of the state of Gujarat, India. The participants' serum samples were screened for antileptospiral antibodies by using Immunoglobulin G (IgG) and Immunoglobulin M (IgM) enzyme-linked immunosorbent assays (ELISAs) followed by a microscopic agglutination test (MAT). The Chi-square (χ2) test and odds ratio were calculated using IBM SPSS Statistics for Windows, version 22 (IBM Corp., Armonk, N.Y., USA) to ascertain the associated risk factors. Regarding demographic information, this study included 104 men and 19 women in high-risk occupational groups. The overall seroprevalence of antileptospiral antibodies in these high-risk workers was 46.3%. The seroprevalence was the highest among poultry farm workers (56.6%), followed by cattle farm workers (54.5%) and slaughterhouse workers (25.6%). The MAT in combination with IgM is adequate for the serological diagnosis of leptospirosis, but we have also employed IgG ELISA to understand the chronic infection in these high-risk occupational groups as exposure was both past and present. Tests were conducted for antibodies against various Leptospira serovars in the major serogroups; frequent serovars included Hurstbridge, Panama, Javanica, Tarassovi, Copenhageni, Pomona, and Weaveri, among others. The significant (P < 0.05) risk factors associated with leptospirosis in these high-risk occupations reported to be living in field areas, the presence of livestock in the neighborhood, working in slaughterhouses, drinking water from natural water resources, contact with animals such as dogs or livestock, and wounds during occupational practice. Considering the high seroprevalence of leptospirosis, high-risk occupational groups should be regularly screened for potential development of the fatal disease. Hurstbridge was found to be the most prevalent serovar in the studied population, followed by Panama, Javanica, and Tarassovi.

Prevalence of HIV, HBV and HCV among livestock merchants and slaughterhouse workers in Ibadan, Nigeria.

Most studies on viral infections among livestock handlers have focused on occupational exposure from inadvertent contact with infected animals. Consequently, little emphasis is given to the effect of their lifestyle on the acquisition of other blood-borne viruses. To determine the prevalence and assess risk factors for HIV, HBV and HCV infections among livestock handlers in Ibadan, Nigeria. Blood samples were collected from 265 livestock handlers between October 2016 to April 2017 in Ibadan. The samples were tested for the presence of antibodies to HIV and HCV; and surface antigen to HBV using ELISA. Structured questionnaire was administered to collect information on risk factors associated with the transmission of these viruses. Data analysis was carried out using Chi-square test and logistic regression to determine the association between risk factors and predictors of infection (p < 0.05). Of 265 participants, 11 (4.2%), 29 (10.9%) and 13 (4.9%) individuals tested positive for HIV, HBV and HCV infections respectively. Two (0.8%) of the participants were coinfected with HIV and HBV while 1(0.4%) was coinfected with both HBV and HCV. Individuals who travelled frequently in the course of Livestock trades had a higher rate of HIV infection. A high Infection with HIV, HBV and HCV is common among the study participants. There is a need for continued surveillance and awareness creation on preventive measures against these viruses.

Seroprevalence and renal carriage of pathogenic Leptospira in livestock in Cotonou, Benin.

Leptospirosis is a zoonotic disease. It is particularly prevalent in tropical countries and has major consequences for human and animal health. In Benin, the disease's epidemiology remains poorly understood, especially in livestock, for which data are lacking. To characterise Leptospira seroprevalence and locally circulating serogroups in livestock from Cotonou and to estimate the prevalence of Leptospira renal carriage in cattle. We conducted a cross-sectional study in February 2020 during which livestock were sampled at an abattoir and in an impoverished city district. We analysed blood samples from 279 livestock animals (i.e. cattle, sheep, goats and pigs) using the microscopic agglutination test. Additionally, samples of renal tissue from 100 cattle underwent 16s rRNA (rrs) real-time PCR analysis. For the 131 cattle, 85 sheep, and 50 goats tested, seroprevalence was 18% (95% confidence interval [CI] [12%, 26%]), 9% (95% CI [4%, 17%] and 2% (95% CI [0%, 9%]), respectively, and most of the seropositive animals were associated with 1:100 titres. All 13 pigs were seronegative. Leptospira DNA was found in the renal tissue of 10% (95% CI [5%, 18%]) of the cattle tested (n=100). Leptospira borgpetersenii was the main species present (n=7), but Leptospira interrogans (n=2) and Leptospira kirschneri (n=1) were also detected. Various serogroups (Canicola, Grippotyphosa, Sejroe, Icterohaemorrhagiae, Pomona, Pyrogenes, Australis and Autumnalis) were detected using microscopic agglutination test without a clear predominance of any of them. These results suggest that abattoir workers and people living in close contact with livestock in poor urban areas are exposed to the risk of Leptospira infection.

Sero-prevalence and risk factors associated with occurrence of anti-Brucella antibodies among slaughterhouse workers in Uganda.

Brucellosis is a febrile zoonosis occurring among high-risk groups such as livestock keepers and abattoir workers and is a public health priority in Uganda. The technical complexities of bacteriological and molecular methods make serological approaches the cornerstone of diagnosis of human brucellosis in resource limited settings. Therefore, proper application and interpretation of serological tests is central to achieve a correct diagnosis. We conducted a cross-sectional study to estimate the seroprevalence and factors associated with anti-Brucella antibodies among slaughterhouse workers processing ruminants and pigs in three regions of the country with serial testing using a combination of the Rose Bengal Test (RBT) and the BrucellaCapt test. An authorized clinician collected 543 blood samples from consenting abattoir workers as well as attribute medical and social demographic data. Univariable and multivariable logistic regression were used to determine factors associated with anti-Brucella sero-positivity. The sero-prevalence among ruminant slaughterhouse workers ranged from 7.3% (95% CI: 4.8-10.7) using BrucellaCapt to 9.0% (95% CI: 6.3-12.7) using RBT. Slaughterhouse workers from the Eastern regions (AOR = 9.84, 95%CI 2.27-69.2, p = 0.006) and those who graze animals for alternative income (AOR = 2.36, 95% CI: 1.91-6.63, p = 0.040) were at a higher risk of exposure to Brucella. Similarly, those who wore Personal Protective Equipment (AOR = 4.83, 95%CI:1.63-18.0, p = 0.009) and those who slaughter cattle (AOR = 2.12, 95%CI: 1.25-6.0, p = 0.006) were at a higher risk of exposure to Brucella. Those who slaughter small ruminants (AOR = 1.54, 95%CI: 1.32-4.01, p = 0.048) were also at a higher risk of exposure to Brucella. Our study demonstrates the combined practical application of the RBT and BrucellaCapt in the diagnosis of human brucellosis in endemic settings. Both pharmaceutical (e.g., routine testing and timely therapeutic intervention), and non-pharmaceutical (e.g., higher index of suspicion of brucellosis when investigating fevers of unknown origin and observation of strict abattoir hygiene) countermeasures should be considered for control of the disease in high-risk groups.

Slaughterhouse workers, bullfighters, and cockfighters in Ecuador: paradoxical moral and affective action on non-human animals

ABSTRACT The process of killing non-human animals demands certain psychosocial, affective, and moral processes. In the case of so-called ‘death-saturated environments’, psychic numbing and systematic desensitisation related to violent attitudes and behaviours against non-human animals acquire contradictory dimensions. To understand these processes in depth, this article proposes a theoretical perspective based on the social psychology of human-animal relations. Empirically, the study examines the experiences, attitudes, and worldviews of men in Ecuador whose jobs involve inflicting pain and death on animals and focuses on the ways in which these subjects deal with ‘moral stress’ and ‘the caring-killing paradox’. It examines how slaughterhouse workers, bullfighters, and cockfighters establish ambivalent relationships with the animals, characterised by a certain paradoxical moral and affective action. Eleven in-depth interviews, lasting one to three hours, were conducted for this purpose, and are analysed through the qualitative data analysis software Atlas.ti, using thematic analysis as a qualitative research technique.

A Review on Crimean-Congo Hemorrhagic Fever Infections in Tunisia.

Crimean-Congo hemorrhagic fever (CCHF) is a zoonotic tick-borne disease, caused by an arbovirus of the genus Orthonairovirus and the family Nairoviridae. Crimean-Congo hemorrhagic fever virus (CCHFV) is widespread in several regions of the world. While the virus is not pathogenic to all susceptible livestock and wild mammals, it can lead to severe hemorrhagic fever in humans. In this review, we compiled published data on CCHFV infections in humans, animals, and ticks in Tunisia. Based on that, we discussed the epidemiology and the distribution patterns of CCHFV infections highlighting the risk factors for this virus in the country. CCHF infection prevalence in humans was estimated to 2.76% (5/181) and 5% (2/38) in Tunisian febrile patients and Tunisian slaughterhouse workers, respectively. Concurrently, seroprevalence in domestic ungulates (sheep, goats, cattle, and dromedaries) ranged from zero to 89.7%, and only one Hyalomma impeltatum tick specimen collected from dromedaries in southern Tunisian was positive for CCHFV by reverse transcriptase-polymerase chain reaction (0.6%; 1/165). As Tunisian studies on CCHFV are geographically scattered and limited due to very small sample sizes, further studies are needed to improve the knowledge on the epidemiology of CCHF in Tunisia.

Why Seeing Is Not Believing and Why Believing Is Seeing: On the Politics of Sight

Social movements often appeal to the politics of sight, meaning that if people knew about a given injustice, political transformation would follow. Jasmine English and Bernardo Zacka articulate two central premises of the politics of sight: “(1) exposing morally repugnant practices will make us see them, (2) seeing such practices will stop us from acquiescing to them.” Considering the case of slaughterhouse workers, Timothy Pachirat and English and Zacka challenge the previous premises. This article complements their contributions by theorizing what I call Western conceptuality/language and the role this plays in forming our subjectivities not to recognize violence on the one hand, and to be sovereign masters over animals on the other. I conclude by discussing the political implications of these arguments for the politics of sight, including the role of concealment and exposure, and the conditions needed for humans to see animals in their full ethical weight.

Assessment of abattoir workers and livestock keepers’ knowledge and practices regarding bovine tuberculosis in Senegal

Background and Aim: Tuberculosis (TB) is a major zoonosis in Senegal, accounting for 33% of all zoonotic disease reports in 2019. The aim of this study was to assess bovine TB knowledge and practices of abattoir workers in Dakar and livestock farmers in Pout. Materials and Methods: We conducted a cross-sectional study on knowledge and practices of Dakar abattoir workers (butchers, transporters, sellers, and animal health workers) and Pout livestock farmers regarding bovine tuberculosis. R 3.2.6 was used for descriptive statistics, Chi-square, and Fischer’s exact tests, and STATA 13 was used for univariate and multivariate logistic regressions. Results: A total of 274 abattoir workers and livestock farmers were interviewed: 103 (37.6%) from Dakar abattoir and 171 (62.4%) from Pout farms. Respondents were predominantly male (75.2%), aged 30–59 years (67.5%), and had at least 10 years of experience (51.8%). The majority (98.2%) were aware of TB, but only 31.4% knew that it was zoonotic. Only 2.5% (7/274) of participants had satisfactory TB knowledge, which differed according to study area, experience, profession, and good practice (p = 0.05). Abattoir workers were 11 times more likely than farmers to have good TB knowledge (odds ratio [OR] = 11.2; 95% confidence interval [CI] = 1.1–114.3). Respondents with 5–10 years of experience were 16.9 times more likely to have good knowledge of TB (OR = 16.9; 95% CI = 1.7–163.4). The majority of participants preferred raw milk (83.6%) and undercooked meat (83.6%). Only 29.6% of participants had good practices, which differed with respect to study area, gender, marital status, age, occupation, and knowledge of TB (p = 0.05). Age (OR = 3.3; 95% CI, 1.3–8.3) was identified as a good practice adoption predictor. Conclusion: Globally, there was a low level of good knowledge and practices regarding TB among respondents. There is a need for mass education through multi-sectoral collaboration between health professionals (humans and animals) using a One Health approach. Keywords: animal, human, public health, tuberculosis, zoonosis.

Biphasic MERS-CoV Incidence in Nomadic Dromedaries with Putative Transmission to Humans, Kenya, 2022-2023.

Middle East respiratory syndrome coronavirus (MERS-CoV) is endemic in dromedaries in Africa, but camel-to-human transmission is limited. Sustained 12-month sampling of dromedaries in a Kenya abattoir hub showed biphasic MERS-CoV incidence; peak detections occurred in October 2022 and February 2023. Dromedary-exposed abattoir workers (7/48) had serologic signs of previous MERS-CoV exposure.

Isolation, and Identification of Escherichia coli O157:H7 Recovered from Chicken Meat at Addis Ababa Slaughterhouses.

It is a growing concern that pathogenic bacteria can be found in poultry meat, and an additional problem is the ongoing rise in food-derived bacteria's resistance to antibiotics. A cross-sectional study was conducted from February 2021 to March 2023. This study aimed to isolate, identify and analyze E. coli in poultry meat collected from slaughterhouses in Addis Ababa. A total of 499 samples were collected from fecal content, carcass, hand and knife swab samples by using purposive and systematic random sampling methods. An overall 5.2% Escherichia coli (E. coli O157:H7) prevalence was found in this study. On average, antimicrobial susceptibility tests revealed that the sensitivities of (Escherichia coli) E. coli O157:H7 isolates from carcass swabs, fecal content, manuals, knife swabs and water samples were 62.3%, 52.5%, 53%, 60% and 60%, respectively. However, few (Escherichia coli) E. coli O157:H7 isolates have developed multidrug resistance to some antibiotics, for an overall rate of 13.8%. Knowledge and attitude assessment of the slaughterhouse workers showed that 44.2% had no wash their hands at all and that 125.6% had washed their hands before slaughter commencement. The detection of (Escherichia coli) E. coli O157:H7 isolates from all sample types had a slight prevalence of serious public health concerns. It is important to monitor antibiotic use for both human and animal health in order to make sure that it is safe and effective.

Molecular epidemiology of Coxiella burnetii infection in sheep and goats in Henan province, China

Q fever is a significant zoonotic disease caused by Coxiella burnetii, an obligate intracellular gram-negative bacterium. Although C. burnetii infection has been identified in various animal species, domestic ruminants serve as the primary reservoirs and main sources of human infection. Understanding of the epidemiology of C. burnetii in domestic ruminants is crucial for preventing and controlling of C. burnetii infection in humans. In this study, spleen tissues from sheep and goats were collected in Hennan province, China. Through PCR screening, C. burnetii was detected in sheep and goats in Henan province with an overall infection rate of 6.8%. Sequence comparison and phylogenetic analysis revealed that all newly identified C. burnetii strains shared a close genetic relationship with those found in humans worldwide. These findings highlight the high risk of C. burnetii infection among slaughterhouse workers and emphasize the importance of epidemiological studies that investigate samples from both humans and animals within the "One Health" framework. Such surveillance will contribute to a better understanding of the epidemic situation and aid in the development of effective prevention and control strategies for C. burnetii infections in humans.

Brucellosis Seropositivity Using Three Serological Tests and Associated Risk Factors in Abattoir Workers in Gauteng Province, South Africa.

Abattoir workers are liable to zoonotic infections from animals and animal products, primarily to diseases with asymptomatic and chronic clinical manifestations in animals, such as brucellosis. No published reports exist on the seroprevalence of brucellosis in abattoir workers in South Africa. Therefore, this cross-sectional study was conducted to estimate the occurrence and risk factors for Brucella exposure in abattoir workers in Gauteng Province. A total of 103 abattoir workers and managers from 6 abattoirs, where brucellosis-positive slaughtered cattle and sheep were previously detected, were interviewed and tested with serological assays using the Rose Bengal test (RBT), BrucellaCapt, and IgG-ELISA. A pre-tested questionnaire was administered to consenting respondents to obtain information on risk factors for brucellosis. Of the 103 respondents tested, the distribution of female and male workers was 16 (15.5%) and 87 (84.5%), respectively. The seroprevalence for exposure to brucellosis was 21/103 (20.4%, 95%CI: 13.1-29.5) using a combination of RBT, BrucellaCapt, or IgG-ELISA. For test-specific results, seroprevalences by RBT, BrucellaCapt, and IgG-ELISA were 13/103 (12.6%, 95%CI: 6.9-20.6), 9/103 (8.74%, 95%CI: 4.1-15.9), and 18/103 (17.5%, 95%CI: 10.7-26.2), respectively. Low-throughput abattoirs were identified as associated risks, as 29.3% of workers were seropositive compared with 12.7% of workers in high-throughput abattoirs, which highlights that direct contact at abattoirs poses higher risk to workers than indirect and direct contact outside abattoirs. This study confirms the occurrence of Brucella spp. antibodies among abattoir workers in South Africa, possibly due to occupational exposure to Brucella spp., and highlights the occupational hazard to workers. Furthermore, findings underscore that abattoir facilities can serve as points for active and passive surveillance for indicators of diseases of public health importance. We recommend periodic implementation of brucellosis testing of abattoir workers country-wide to establish baseline data for informing appropriate preventive practices and reducing the potential burden of infection rates among these high-risk workers.

Prevalence of work-related musculoskeletal disorders and ergonomic risk assessment among production workers of pig slaughterhouse in the town municipality of Ang Thong, Thailand

Introduction: Work-related musculoskeletal disorders (WMSDs) are a significant health concern among workers, especially in the meat processing industry. Their impacts have been well documented and reported on numerous occasions. The study aimed to determine the prevalence of WMSDs and the ergonomic assessment of exposure to their risk factors. Methods: This cross-sectional study was conducted in a pig slaughterhouse in the town municipality of Ang Thong, Thailand. Data were collected from April to July 2021 from 108 participants who answered a questionnaire. The descriptive questionnaire for WMSDs was adapted from the Standardized Nordic Questionnaire in Thai and the Bureau of Occupational and Environmental Diseases, Department of Disease Control of Thailand. Ten individuals received an ergonomic assessment of their exposure to risk factors using the Rapid Entire Body Assessment (REBA) method. Results: According to the study, 94.4% of participants working in pig slaughterhouse production reported experiencing the prevalence of WMSDs in the last seven days. Additionally, 93.5% of workers reported experiencing the prevalence of these disorders within the past 12 months. It has been observed that 29.6% of participants experience higher pain levels in their hands, while 25.9% experience it in their wrists, respectively. Based on the results of an ergonomic risk assessment using the REBA method, the half-cutting operator position presents a moderate level of risk. Conclusion: The study revealed that most of the workers at the pig slaughterhouse had to use their hands and arms to apply repeated pressure consistently. The occurrence rates of WMSDs within the last seven days and 12 months were highest in the hands or wrists, followed by the upper arms and shoulders. Therefore, it is crucial to implement ergonomic measures to minimize the risk factors for WMSDs among production workers in pig slaughterhouses.

The effects of workplace intervention programs to manage work-related musculoskeletal pain among poultry slaughterhouse workers: A randomized controlled trial

Background: The prevalence rate of work-related musculoskeletal pain (WMSP) among poultry slaughterhouse workers (PSW) has been reported in the shoulder, arm, and hand due to the involvement of repetitive and forceful upper limb movements. An intervention program is needed to reduce upper limb pain and improve upper limb functions among PSW. Objectives: This study aimed to investigate the effectiveness of workplace intervention programs on musculoskeletal pain, upper limb functions, and work ability among PSW. Materials and methods: A total of 48 participants (21 males and 27 females) who met the inclusion criteria were recruited into the study. The participants were allocated into two groups: The workplace intervention group (WIG, N=24; 10 males; 14 females) and the control group (CG, N=24; 11 males; 13 females). The WIG performed the exercise training with elastic resistance bands (ERB) and stretching exercises for eight weeks, and the CG did not perform any activity. The Visual Analogue Scale (VAS), shoulder reach flexibility test, active range of motion (AROM), the disability of the Arm, Shoulder, and Hand (KKU-DASH), and Thai Work Ability Index (Thai WAI) were used as outcome evaluations. The two-way analyses of variance (ANOVAs) with repeated measures (group x time) were used for statistical analyses, and the statistical significance was set at p&lt;0.05. Results: Approximately 79.1% (N=19) of the participants in WIG reported significantly decreased pain intensity of upper limb 3.06 (0.83 to -5.4) in the right side (p&lt;0.01) and 1.96 (1.6 to -5.6) in the left side (p&lt;0.001) after the 8-week intervention. Meanwhile, shoulder flexibility in WIG significantly increased (p&lt;0.001) to around 3.55 cm. (0.67 to 8.20) on the right side and 5.61 cm. (2.0 to 10.67) on the left side. For AROM in WIG, neck flexion, lateral neck flexion, neck rotation, and left shoulder flexion significantly increased (p&lt;0.05), as well as KKU-DASH and Thai WAI scores (p&lt;0.001). There was no significant difference within-group in all variables in CG. Conclusion: The workplace intervention program significantly reduced upper limb pain and increased neck movement and shoulder flexion among PSW. The training programs also improved work ability and reduced disability with upper extremity musculoskeletal conditions among PSW.

Molecular Detection of Tick-Borne Pathogens in Kumasi: With a First Report of Zoonotic Pathogens in Abattoir Workers.

Tick-borne pathogens continue to infect humans and animals worldwide. By adapting to the movement of livestock, ticks facilitate the spread of these infectious pathogens. Humans in close contact with animals that could be amplifying hosts are especially at risk of being infected with tick-borne pathogens. This study involved the collection of dry blood spots (DBSs) to determine tick-borne pathogens occurring in slaughtered livestock and abattoir workers in Kumasi. This study employed the use of conventional PCR, RT-PCR, and Sanger sequencing to detect and identify the tick-borne pathogens. The resulting data was analysed using Stata version 13. A total of 175 DBSs were collected from goats (76), cattle (54), and sheep (45) in the Kumasi abattoir (130, 74.29%) and Akwatia Line slaughter slab (45, 25.71%). The pathogens identified were mostly bacterial including Anaplasma capra (9.71%), Anaplasma phagocytophilum (1.14%), and Rickettsia aeschlimannii (0.57.%). The only parasite identified was Theileria ovis (9.14%). A significant association was seen between A. capra (p < 0.001) infection and female sheep sampled from the Akwatia Line slaughter slab. Again, there was a significant association between T. ovis (p < 0.001) infections and female sheep from the Kumasi abattoir. From the human DBS (63) screened, the pathogens identified were all bacterial including Coxiella burnetii (1.89%), Rickettsia africae (1.89%), and R. aeschlimannii (1.89%). This study reports the first detection of R. aeschlimannii in livestock as well as the occurrence of the above-mentioned pathogens in humans in Ghana. Animals can serve as amplifying hosts for infectious pathogens; hence, there is an increased risk of infections among the abattoir workers. Continuous surveillance effort is essential, and abattoir workers need to protect themselves from tick bites and infectious tick-borne pathogens.