Post-exposure Prophylaxis Research Articles

Genetic basis of clarithromycin resistance in Bacillus anthracis.

The high-consequence pathogen Bacillus anthracis causes human anthrax and often results in lethal infections without the rapid administration of effective antimicrobial treatment. Antimicrobial resistance profiling is therefore critical to inform post-exposure prophylaxis and treatment decisions, especially during emergencies such as outbreaks or where intentional release is suspected. Whole-genome sequencing using a rapid long-read sequencer can uncover antimicrobial resistance patterns if genetic markers of resistance are known. To identify genomic markers associated with antimicrobial resistance, we isolated B. anthracis derived from the avirulent Sterne strain with elevated minimal inhibitory concentrations to clarithromycin. Mutants were characterized both phenotypically through broth microdilution susceptibility testing and observations during culturing, as well as genotypically with whole-genome sequencing. We identified two different in-frame insertions in the L22 ribosomal protein-encoding gene rplV, which were subsequently confirmed to be involved in clarithromycin resistance through the reversion of the mutant gene to the parent (drug-susceptible) sequence. Detection of the rplV insertions was possible with rapid long-read sequencing, with a time-to-answer within 3 h. The mutations associated with clarithromycin resistance described here will be used in conjunction with known genetic markers of resistance for other antimicrobials to strengthen the prediction of antimicrobial resistance in B. anthracis.IMPORTANCEThe disease anthrax, caused by the pathogen Bacillus anthracis, is extremely deadly if not treated quickly and appropriately. Clarithromycin is an antibiotic recommended for the treatment and post-exposure prophylaxis of anthrax by the Centers for Disease Control and Prevention; however, little is known about the ability of B. anthracis to develop resistance to clarithromycin or the mechanism of that resistance. The characterization of clarithromycin-resistant isolates presented here provides valuable information for researchers and clinicians in the event of a release of the resistant strain. Additionally, knowledge of the genetic basis of resistance provides a foundation for susceptibility prediction through rapid genome sequencing to inform timely treatment decisions.

Doxycycline Post-exposure Prophylaxis and Sexually Transmitted Infections in Italy, 2023.

Doxycycline Post-exposure Prophylaxis and Sexually Transmitted Infections in Italy, 2023.

MHealth-Based Gamification Interventions Among Men Who Have Sex With Men in the HIV Prevention and Care Continuum: Systematic Review and Meta-Analysis.

In the past few years, a burgeoning interest has emerged in applying gamification to promote desired health behaviors. However, little is known about the effectiveness of such applications in the HIV prevention and care continuum among men who have sex with men (MSM). This study aims to summarize and evaluate research on the effectiveness of gamification on the HIV prevention and care continuum, including HIV-testing promotion; condomless anal sex (CAS) reduction; and uptake of and adherence to pre-exposure prophylaxis (PrEP), postexposure prophylaxis (PEP), and antiretroviral therapy (ART). We comprehensively searched PubMed, Embase, the Cochrane Library, Web of Science, Scopus, and the Journal of Medical Internet Research and its sister journals for studies published in English and Chinese from inception to January 2024. Eligible studies were included when they used gamified interventions with an active or inactive control group and assessed at least one of the following outcomes: HIV testing; CAS; and uptake of and adherence to PrEP, PEP, and ART. During the meta-analysis, a random-effects model was applied. Two reviewers independently assessed the quality and risk of bias of each included study. The systematic review identified 26 studies, including 10 randomized controlled trials (RCTs). The results indicated that gamified digital interventions had been applied to various HIV outcomes, such as HIV testing, CAS, PrEP uptake and adherence, PEP uptake, and ART adherence. Most of the studies were conducted in the United States (n=19, 73%). The most frequently used game component was gaining points, followed by challenges. The meta-analysis showed gamification interventions could reduce the number of CAS acts at the 3-month follow-up (n=2 RCTs; incidence rate ratio 0.62, 95% CI 0.44-0.88). The meta-analysis also suggested an effective but nonstatistically significant effect of PrEP adherence at the 3-month follow-up (n=3 RCTs; risk ratio 1.16, 95% CI 0.96-1.38) and 6-month follow-up (n=4 RCTs; risk ratio 1.28, 95% CI 0.89-1.84). Only 1 pilot RCT was designed to evaluate the effectiveness of a gamified app in promoting HIV testing and PrEP uptake. No RCT was conducted to evaluate the effect of the gamified digital intervention on PEP uptake and adherence, and ART initiation among MSM. Our findings suggest the short-term effect of gamified digital interventions on lowering the number of CAS acts in MSM. Further well-powered studies are still needed to evaluate the effect of the gamified digital intervention on HIV testing, PrEP uptake, PEP initiation and adherence, and ART initiation in MSM.

Assessment of Hospital Infection Prevention and Control Practices: Insights from Kampala International University Teaching Hospital, Ishaka, Uganda

The study aimed to identify factors affecting hospital infection prevention and control practices among medical personnel at Kampala International University Teaching Hospital in Ishaka, Uganda. The research was conducted using a quantitative descriptive research design. The result revealed that 76% of respondents felt they had sufficient knowledge about infection control and prevention practices. However, 34% of respondents found precautionary measures interfered with their work, and 70% recap needles after use. Only 32% reported a 0.3% chance of acquiring HIV after a needle stick injury. The study also showed 44% of respondents had received training on hand washing within 6 months. Most respondents 78% were able to wash hands before and after procedures. Only 44% of respondents had received training on waste segregation within a 6-month period. Policies and guidelines also influenced infection prevention and control practices. 52% of respondents considered the hospital infection prevention and control committee active, and 78% of them believed that waste segregation and post-exposure prophylaxis policies were available in their departments. The study found that hand washing is being carried out as recommended due to adequate on-the-job training. However, 54% of staff perceive hand washing as a challenge, and 78% were able to wash hands before and after every procedure as recommended. Only 30% of workers have access to a regular supply of soap and detergents for washing hands. Waste segregation is being practiced as recommended, but challenges persist for medical personnel. The management team should integrate infection prevention and control into the regular supervision of healthcare providers. The study suggests that promoting hand washing in a hospital requires adequate training, facilities, supplies, staffing, and a positive attitude. It recommends frequent hand washing training, accessible running water infrastructure, disposable towels, and soap and detergents. Staff should be trained on attitude change and proper waste segregation. Keywords: Hospital, Infection, Waste, Hand washing, supplies, training.

Oral streptococcal susceptibility to azithromycin may be associated with doxycycline use: A post-hoc analysis with implications for doxycycline post exposure prophylaxis.

Tetracycline and macrolide resistance are frequently linked in streptococci and other species. We aimed to assess the association between doxycycline use and azithromycin MICs in oral streptococci. Linear regression was used to assess the association between doxycycline use in the prior year and the median MIC per participant of oral streptococcal colonies isolated at the baseline visit of the ResistAZM study. The analysis controlled for receipt of other antimicrobials as well as time since antimicrobial consumption. Fifty-six individual colonies confirmed to be streptococci were isolated from 19 individuals at baseline. The azithromycin MICs of these isolates varied considerably between 0.25mg/L and >256mg/L (median 28mg/L; IQR 1-192mg/L). The consumption of doxycycline in the preceding 12 months was positively associated with median streptococcal azithromycin MIC (coef. 151.6 [95% CI 10.6-292.7]; p = .037). This post-hoc analysis found that doxycycline use was associated with streptococcal azithromycin susceptibility. Numerous limitations of the study design mean that this study is best considered hypothesis generating. Prospective studies are required to assess if the use of doxycycline could select for macrolide resistance in oral streptococci.

Management of acute sexual assault presenting to a large Australian sexual health clinic in 2012-2021: a retrospective clinical audit.

Background The incidence of sexual assault continues to rise in Australia. This study aimed to describe the nature of assault, HIV/STI positivity, and its management at a sexual health clinic. Methods We performed a chart review of 516 sexual assault cases presenting to Melbourne Sexual Health Centre between 2012 and 2021, collecting data on victim demographics, details of assault, HIV/STI testing and positivity, police involvement, and offer of counselling. Results We included 516 cases: 124 males (24.0%); 384 females (74.4%); and eight transgender (1.6%) victims. The proportion of assault cases presenting to Melbourne Sexual Health Centre increased from 0.1% (37/37,070) in 2012 to 0.2% (56/36,514) in 2021 (P trend =0.006). HIV post-exposure prophylaxis was prescribed for 64.5% (80/124) of males and 12.5% (48/384) of females. Among victims, 69.4% (358/516) were tested for HIV and no one tested positive, while 71.9% (371/516) were tested for syphilis, with 1.6% (6/371) positive. Gonorrhoea and chlamydia were tested at the oropharynx (44.8% [231/516] vs 28.7% [148/516]), genitals (83.7% [432/516] vs 92.4% [477/516]) and anorectum (35.3% [182/516] vs 35.3% [182/516]). Positivity for gonorrhoea and chlamydia were: 2.6% (6/231) vs 2.0% (3/148) at oropharynx, 1.4% (6/432) vs 2.9% (14/477) at genitals, and 5.5% (10/182) vs 7.1% (13/182) at anorectum. According to clinical records, 25.2% (130/516) of victims sought police involvement, and 71.7% (370/516) were offered counselling. Conclusions Sexual assault was an uncommon presentation at Melbourne Sexual Health Centre, with diverse circumstances surrounding assault; however, clinical documentation varied, indicating a need for a standard primary care protocol for clients presenting with acute sexual assault.

Pregnancy Management in HIV Viral Controllers: Twenty Years of Experience.

(1) Background: The evidence base for the management of spontaneous viral controllers in pregnancy is lacking. We describe the management outcomes of pregnancies in a series of UK women with spontaneous HIV viral control (<100 copies/mL 2 occasions before or after pregnancy off ART). (2) Methods: A multi-centre, retrospective case series (1999-2021) comparing pre- and post-2012 when guidelines departed from zidovudine-monotherapy (ZDVm) as a first-line option. Demographic, virologic, obstetric and neonatal information were anonymised, collated and analysed in SPSS. (3) Results: A total of 49 live births were recorded in 29 women, 35 pre-2012 and 14 post. HIV infection was more commonly diagnosed in first reported pregnancy pre-2012 (15/35) compared to post (2/14), p = 0.10. Pre-2012 pregnancies were predominantly managed with ZDVm (28/35) with pre-labour caesarean section (PLCS) (24/35). Post-2012 4/14 received ZDVm and 10/14 triple ART, p = 0.002. Post-2012 mode of delivery was varied (5 vaginal, 6 PLCS and 3 emergency CS). No intrapartum ZDV infusions were given post-2012 compared to 11/35 deliveries pre-2012. During pregnancy, HIV was detected (> 50 copies/mL) in 14/49 pregnancies (29%) (median 92, range 51-6084). Neonatal ZDV post-exposure prophylaxis was recorded for 45/49 infants. No transmissions were reported. (4) Conclusion: UK practice has been influenced by the change in guidelines, but this has had little impact on CS rates.

Utilization of post-exposure prophylaxis potentially contributed to the changes of risk behaviors among men who have sex with men in China.

The HIV infection status among men who have sex with men (MSM) in China is a cause for concern. Post-exposure prophylaxis (PEP) serves as a highly effective biomedical preventive measure against HIV infection. Substantial evidence has established an association between PEP utilization and risk behaviors among MSM, but whether the utilization of PEP has an impact on risk behaviors remains unknown. This study sought to elucidate the impact of PEP usage on risk behaviors among MSM and provide recommendations for developing targeted HIV prevention programs. A cohort study was conducted in Qingdao, China, from April 2021 to January 2022. Participants were enlisted by volunteers from community-based organizations through a snowball sampling method. Face-to-face interviews were conducted to collect sociodemographic and behavioral information of participants. The study encompassed a retrospective investigation, baseline survey, and follow-up survey, representing periods before, during, and after PEP usage, respectively. Generalized estimating equations, fitting a Poisson regression model, were applied to scrutinize changes in risk behaviors of MSM during and after PEP usage, in comparison to before PEP usage. A total of 341 MSM were recruited in the cohort study, with 179 individuals completing the follow-up survey. In comparison to before PEP usage, there was a significant increase in the proportion of Rush Popper usage (17.6% vs. 23.8% vs. 29.6%) and commercial sexual partners (10.9% vs. 17.6% vs. 21.8%) among MSM during and after PEP usage. Before PEP usage, 88.7% of MSM reported having ≥3 temporary sexual partners in the last 6 months. This proportion exhibited no significant change during PEP usage (91.8%), but it significantly increased to 97.8% after PEP usage (P < 0.05). Notably, there was a significant decrease in group sex during and after PEP usage compared to before PEP usage (30.8% vs. 21.4% vs. 21.2%). The utilization of PEP may impact risk behaviors among MSM, potentially leading to increased Rush Popper usage, temporary sexual partners, and commercial sexual partners after PEP usage, accompanied by a decrease in group sex. Further research is imperative to elucidate the impact of PEP utilization on MSM and develop targeted HIV prevention programs.

45 years of tetracycline post exposure prophylaxis for STIs and the risk of tetracycline resistance: a systematic review and meta-analysis

There is considerable interest in the use of doxycycline post exposure prophylaxis (PEP) to reduce the incidence of bacterial sexually transmitted infections (STIs). An important concern is that this could select for tetracycline resistance in these STIs and other species. We searched PubMed and Google Scholar, (1948–2023) for randomized controlled trials comparing tetracycline PEP with non-tetracycline controls. The primary outcome was antimicrobial resistance (AMR) to tetracyclines in all bacterial species with available data. Our search yielded 140 studies, of which three met the inclusion criteria. Tetracycline PEP was associated with an increasedprevalence of tetracycline resistance in Neisseria gonorrhoeae, but this effect was not statistically significant (Pooled OR 2.3, 95% CI 0.9-3.4). PEP had a marked effect on the N. gonorrhoeae tetracycline MIC distribution in the one study where this was assessed. Prophylactic efficacy was 100% at low MICs and 0% at high MICs. In the one study where this was assessed, PEP resulted in a significant increase in tetracycline resistance in commensal Neisseria species compared to the control group (OR 2.9, 95% CI 1.5-5.5) but no significant effect on the prevalence of tetracycline resistance in Staphylococcus aureus. The available evidence suggests that PEP with tetracyclines could be associated with selecting tetracycline resistance in N. gonorrhoeae and commensal Neisseria species.

SARS-CoV-2 Mpro oligomerization as a potential target for therapy

The main protease (Mpro) of SARS-CoV-2 is critical in the virus's replication cycle, facilitating the maturation of polyproteins into functional units. Due to its conservation across taxa, Mpro is a promising target for broad-spectrum antiviral drugs. Targeting Mpro with small molecule inhibitors, such as nirmatrelvir combined with ritonavir (Paxlovid™), which the FDA has approved for post-exposure treatment and prophylaxis, can effectively interrupt the replication process of the virus. A key aspect of Mpro's function is its ability to form a functional dimer. However, the mechanics of dimerization and its influence on proteolytic activity remain less understood. In this study, we utilized biochemical, structural, and molecular modelling approaches to explore Mpro dimerization. We evaluated critical residues, specifically Arg4 and Arg298, that are essential for dimerization. Our results show that changes in the oligomerization state of Mpro directly affect its enzymatic activity and dimerization propensity. We discovered a synergistic relationship influencing dimer formation, involving both intra- and intermolecular interactions. These findings highlight the potential for developing allosteric inhibitors targeting Mpro, offering promising new directions for therapeutic strategies.

Pre-exposure and postexposure prophylaxis access in rural versus urban pharmacies in Georgia and Pennsylvania

BackgroundPre-exposure prophylaxis (PrEP) and postexposure prophylaxis (PEP) prevent HIV among individuals at high risk for acquisition. Pre-existing structural barriers to PrEP/PEP access among rural patients may be exacerbated further if pharmacies do not keep PrEP/PEP in stock, constituting a significant barrier to mitigating the HIV epidemic. ObjectivesTo compare PrEP/PEP availability for same-day pickup in rural vs urban Georgia and Pennsylvania pharmacies. MethodsWe conducted a cross-sectional simulated patient caller study, calling pharmacists in Georgia and Pennsylvania to see whether PrEP/PEP was available for same-day pickup. We identified retail pharmacies through state pharmacy boards and categorized rurality using state-based definitions. We used multivariable logistic regression to assess PrEP availability by rurality and Ending the HIV Epidemic (EHE) designation, accounting for chain pharmacy status and county-level racial composition. ResultsAmong 481 pharmacies contacted (304 in Pennsylvania and 177 in Georgia), only 30.77% had PrEP for same-day pickup and only 10.55% had PEP for same-day pickup. PrEP availability did not differ significantly by state. Urban pharmacies had 2.02 (95% CI: 1.32–3.09) greater odds of PrEP same-day availability compared to rural pharmacies. Pharmacies in EHE counties had 3.45 (95% CI: 1.9–6.23) times higher odds of carrying PrEP compared to non-EHE counties. ConclusionsPharmacies were unlikely to carry PrEP or PEP. Pharmacies in rural compared to urban, and non-EHE compared to EHE locations were less likely to carry PrEP. Addressing pharmacy barriers to PrEP/PEP may enhance access to HIV prevention for those living at high risk of HIV.

Concordance between SARS-CoV-2 index individuals and their household contacts on index individual COVID-19 transmission cofactors: a comparison of self-reported and contact-reported information

BackgroundFollowing the outbreak of the COVID-19 pandemic, several clinical trials have evaluated postexposure prophylaxis (PEP) among close contacts of an index individual with a confirmed SARS-CoV-2 infection. Because index individuals do not directly inform the efficacy of prevention interventions, they are seldom enrolled in COVID-19 PEP studies. However, adjusting for prognostic covariates such as an index individual’s COVID-19 illness and risk behaviors can increase precision in PEP efficacy estimates, so approaches to accurately collecting this information about the index individual are needed. This analysis aimed to assess whether surveying household contacts captures the same information as surveying the index individual directly.MethodsREGN 2069/CoVPN 3502, a randomized controlled trial of COVID-19 PEP, enrolled household contacts of SARS-CoV-2 index individuals. CoVPN 3502-01 retrospectively enrolled and surveyed the index individuals. We compared responses to seven similar questions about the index individuals’ transmission cofactors that were asked in both studies. We estimated the percent concordance between index individuals and their household contacts on each question, with 50% concordance considered equivalent to random chance.ResultsConcordance between index individuals and contacts was high on the most objective questions, approximately 97% (95% CI: 90–99%) for index individual age group and 96% (88–98%) for hospitalization. Concordance was moderate for symptoms, approximately 85% (75–91%). Concordance on questions related to the index individual’s behavior was only slightly better or no better than random: approximately 62% (51–72%) for whether they received COVID-19 treatment, 68% (57–77%) for sharing a bedroom, 70% (59–79%) for sharing a common room, and 49% (39–60%) for mask wearing at home. However, while contacts were surveyed within 96 h of the index individual testing positive for SARS-CoV-2, the median time to enrollment in CoVPN 3502-01 was 240 days, which may have caused recall bias in our results.ConclusionsOur results suggest a need to survey index individuals directly in order to accurately capture their transmission cofactors, rather than relying on their household contacts to report on their behavior. The lag in enrolling participants into CoVPN 3502-01 also highlights the importance of timely enrollment to minimize recall bias.

Experiences of the National Post-Exposure Prophylaxis Hotline (PEPline): Occupational PEP consultation needs and trends, 2014 to 2022

The National Clinician Consultation Center operates the Post-Exposure Prophylaxis Hotline (PEPline), a federally-funded educational resource providing bloodborne pathogen exposure management teleconsultation to US clinicians. Sixty-seven thousand one hundred nine occupational post-exposure prophylaxis (PEP) consultations (January 2014 to December 2022) were retrospectively analyzed to describe PEPline utilization and common inquiries addressed by National Clinician Consultation Center consultants. Most calls involved percutaneous incidents (70%); blood was the most common body fluid discussed (60%). Inpatient units were the most common exposure setting (35%) and licensed nursing professionals were the most common category of exposed workers (28%). Of 2,295 calls where workers had already initiated PEP for human immunodeficiency virus (HIV) prevention and time to first dose was known, 9% had initiated HIV PEP within 2hours of exposure; almost 80% had initiated HIV PEP between 2 and 24hours; 3% after 24 to 36hours; 5% after 36 to 72hours; and 2% after 72hours. Calls from urgent care providers increased by 10% over time. Overall, more than 90% of callers requested support on risk assessment, including source person testing; other common questions involved PEP side effects and follow-up care. PEPline consultations can help raise awareness about PEP availability and timely initiation, and reduce stigma by addressing common misperceptions about bloodborne pathogen transmission mechanisms and likelihood, particularly regarding HIV.

IJCM_365A: A prospective study on the safety and clinical efficacy of rabies monoclonal antibodies for post exposure prophylaxis in suspected animal exposures at the anti rabies clinic of KIMS Hospital and Research Centre, Bangalore

Background: Rabies immunoglobulins will provide timely passive immunity after exposure to suspected rabid animals along with thorough wound wash and full course of anti-rabies vaccination. The products include human derived RIG (HRIG) and equine derived RIG (ERIG), both having certain constraints for usage. In contrast, monoclonal antibodies (mAbs) produced by recombinant technology, have shown superiority in availability, safety and purity. Therefore, RmAb are an alternative to RIG for passive immunity component of post exposure prophylaxis (PEP). Only two products i.e., RabiShield (single human mAb) &amp; Twinrab (cocktail of two mAbs) have been merchandised in Indian market. WHO has recommended monitoring the clinical use and outcomes of RmAb products for rabies PEP Objective: To assess the safety and clinical efficacy of presently available rabies monoclonal antibodies for post exposure prophylaxis Methodology: All the patients with category III exposure visiting the study site and consenting for the study were included. The details pertaining to socio demographic profile, details of biting animal, characteristics of bite wound, wound wash, details of active &amp; passive immunization and details of adverse events following PEP were collected using a case record form. All the study subjects were followed up for the occurrence of any delayed reactions and further upto six months to know the clinical efficacy of PEP. Results: The present study included 475 animal bite victims. Among them 41.2 % were children, 49.6% were adults and 9.01 % were elderly. The ADEs among Rabishield and TwinRab were 3.18 % &amp; 2.12 % respectively and the difference among them were not statistically significant. ADEs among all the patients receiving both RmAbs were mild and subsided without any complications. All the study subjects were healthy and alive after six months after PEP confirming clinical efficacy. Conclusion: The presently available RmAbs are safe and clinically effective in preventing rabies in suspected exposures

IJCM_306A: Patient compliance towards Post exposure Prophylaxis with Anti Rabies Vaccine - Hospital based study

Background: Rabies is a deadly viral disease that affects the nervous system. The components of rabies post-exposure prophylaxis involve wound treatment, Rabies Immune Globulin, and the anti-rabies vaccine. Proper compliance with the rabies vaccination schedule is crucial to prevent development of Rabies Objectives: 1) To assess prevalence of non-compliance and delayed compliance towards post-exposure prophylaxis of the anti-rabiess vaccine of GMC, Jammu 2) To study factors associated with and reasons of delayed compliance and non-compliance towards post-exposure prophylaxis of the anti-rabies vaccine of GMC, Jammu Methodology: A cross- sectional study was carried out from September 2022 to July 2023 on 594 animal bite victims presenting to OPD of the anti-rabies clinic of GMC, Jammu for the first time, with category 2 and 3 bites were included Results: Males were about 76.9%, and females, 23.1%. Graduates were 29.3%. Animal bites were mainly from stray dogs (58.2%), with category three wounds (93.8%). Wound washing practices were done by 540 (90.9%), about 58 (9.8%) had used only water and about 482 (81.1%) had used only soap and water for wound washing. 71.7% completed the full course of Anti-Rabies Vaccine (ARV), 24.6% showed delayed compliance, and 3.7% were non-compliant or dropouts. Delayed compliance was observed on the second (35%), third (42.4%), and fourth doses (22.6%). Reasons for delayed compliance included distant residence, loss of wages, and forgetfulness. Non-compliance reasons included negligence and health issues. No socio- demographic factors showed an association with compliance with ARV. Conclusion: The urgent need to increase awareness and counseling for individuals bitten by animals. Special attention is crucial for promptly administering Anti-Rabies Immunoglobulin in severe cases (category 3 bites) to prevent rabies

IJCM_413A: A cross sectional study to find out status of post exposure prophylaxis among animal bite cases in Raipur city Chhattisgarh.

Background: Rabies is a viral zoonosis that occurs in more than 100 countries and territories Although a number of carnivores and bat species serve as natural reservoirs, rabies in dogs is the source of 99% human infections and poses a potential threat to more than 3.3 billion people. In humans, rabies is highly fatal once clinical symptoms have developed. According to the World Health Organization, human rabies can be prevented completely by proper post exposure prophylaxis. In India alone, 20,000 deaths (i.e., about 2/100,000 population at risk) and 2 million bites, mostly by dogs, are estimated to occur annually. India has 36% global and 65% Asian rabies burden in terms of cases. Local treatment of wounds is of maximal value when applied immediately after exposure (within minutes if possible). Animal experiments have shown that local wound treatment can reduce the chances of developing rabies by up to 80%. Objectives: To find out the status of post exposure prophylaxis and associated factors among animal bite cases in Raipur city Chhattisgarh. Methodology: Type of study: A community based cross sectional survey Conducted at: Raipur District. Duration of study: Over a period of 3 months (November 2023- January 2024). Study Subjects: General Population. Inclusion criteria: General population, Raipur. Exclusion Criteria: 1) Patients who do not give consent. 2)Unconscious Very ill patients or patients with Mental illness. Results: Total of 1124 participants 41 had animal bite, 63.41% were males and 36.59% were females. Among the biting animals 83% were dogs, while cats were 15% and 2% were monkeys. Out of 41 cases 90.24% had Category II bite while 9.75% had Category III bite. 33 out of 41 i.e. 80.48% victims took Anti Rabies vaccine, while rest 19.52% preferred treatment from traditional healer. Conclusion: Majority of animal bite were of dog bite and were classified under Category II. Improved awareness, forestalling animal rabies, and better access to affordable and potent human rabies vaccines are essential for the elimination of human rabies.

IJCM_280A: A prospective study on safety and clinical efficacy of rabies biologicals in paediatric patients with category III animal exposure

Background: Rabies remains a significant public health concern worldwide, particularly among paediatric populations who are vulnerable to animal exposures. This prospective study aimed to assess the safety and clinical efficacy of rabies biologicals in pediatric patients following Category III animal exposures. Objectives: 1. To describe the post exposure prophylaxis provided to the animal bite victims at the anti rabies clinic. 2. To asses the safety and clinical efficacy of currently available rabies biologicals for post exposure prophylaxis. Methodology: A prospective study was undertaken enrolling 289 pediatric patients fulfilling eligibility criteria who presented with Category III animal exposures at the anti-rabies clinic of KIMS Hospital and Research Centre, Bangalore. All the subjects received rabies biologicals as per NCDC guidelines. The details pertaining to socio demographic profile, biting animal, characteristics of wound, details of post exposure prophylaxis provided were recorded. All the study subjects were followed up for immediate and delayed adverse events. Subsequently, all were followed up for 6 months to demonstrate the clinical efficacy of PEP. Results: The mean age of study subjects was 9.4 years and most of them (43%) were going to school. Dog was the predominant biting animals (96.6%) with most bites were abrasions (45%), mainly on the lower limbs (42%). Single RmAb was the most commonly administered passive immunization (67%) and PVRV was the predominant vaccine (65%). Adverse events following post-prophylaxis were primarily local, predominantly pain (13.2%) and there were no systemic events. All the subjects were alive and healthy at the end of 6 months following PEP. Conclusion: This study contributes valuable insights into the safety and clinical efficacy of rabies biologicals in a pediatric cohort following Category III animal exposures, supporting the continued use of these biologicals in pediatric patients.

IJCM_321A: Circumstances and Distribution of Needle Stick Injuries among Healthcare Workers in a Medical College of Kolkata

Background: Needle-stick injuries (NSI) are common among Health- Care workers (HCWs) during execution of their patient care services and have been recognized as an important source of exposure to blood-borne pathogens. Considerable number of NSIs are not reported which prevents injured HCWs from receiving post exposure prophylaxis (PEP) against HIV, Hepatitis B and C. Objective: To assess the circumstances and reporting of Needle -stick Injuries and its association with service related and demographic variables of healthcare workers in a tertiary level hospital of Eastern India. Methodology: Descriptive, cross-sectional, hospital-based study. The study was conducted among 108 healthcare workers from 20th July to 20th August. Data were collected on Socio-demographic, Service related and events of Needle Stick Injuries and their reporting by an interviewer administered schedule. Results: About 72% study participants suffered from needle stick injury in last one year, 53.85% of them had a single event of NSI and 64% of NSI victims reported the event. Gender, educational status, occupation, vaccination status against Hep B, shift of duty during last NSI, place of last NSI were significantly associated (p value). Conclusion: Incidents of needle stick injuries were more among doctors. Participants completely vaccinated with Hep B vaccine suffered lower number of NSI.

(981) - Experience with Pre- and Post-Exposure Prophylaxis with Tixagevimab and Cilgavimab in Lung Transplant Recipients

(981) - Experience with Pre- and Post-Exposure Prophylaxis with Tixagevimab and Cilgavimab in Lung Transplant Recipients

Lessons for the world: Rabies resurgence in rabies free Timor-Leste and the urgent actions needed for prevention measures

Rabies, a fatal viral illness transmitted from animals to humans, remains a globally significant public health concern. Timor-Leste, previously considered rabies-free, reported its first fatal human rabies case in March 2024, signaling a resurgence of the disease. The case involved a 19-year-old female bitten by a dog in December 2023, highlighting gaps in post-exposure prophylaxis (PEP) administration. Subsequent investigations revealed 29 suspected rabies cases, prompting urgent public health responses including dog vaccinations and healthcare worker training. Despite challenges such as limited vaccine availability, comprehensive strategies advocated by the World Health Organization (WHO) offer hope for rabies control. This event underscores the critical need for proactive measures including vaccination programs, public education, surveillance enhancement, and regional cooperation to prevent rabies emergence and safeguard public health in Timor-Leste and beyond.