Occurrence Of Dengue Hemorrhagic Fever Research Articles

FAKTOR- FAKTOR YANG BERHUBUNGAN DENGAN KEBERADAAN JENTIK NYAMUK AEDES AEGYPTI

The existence of Aedes aegypti larvae is evidence of the discovery of a population of Aedes aegypti mosquitoes that influence the occurrence of Dengue Hemorrhagic Fever. The larvae-free rate in Labuh Baru Timur Subdistrict was found to be 85%, which shows that it has not reached the national standard above or equal to 95%. The research aimed to determine the factors related to the presence of Aedes aegypti mosquito larvae in Labuh Baru Timur Subdistrict, the working area of ​​the Payung Sekaki Community Health Center, Pekanbaru City in 2023. This research method was quantitative using Observational Analytical with a cross-sectional design. The research was carried out in February - July 2023. The sampling technique was quota sampling of 100 heads of families. The data analysis used is univariate and bivariate. The results of the research showed that there was a relationship between knowledge, attitudes, eradicating mosquito nests, the color of the water reservoir, the location of the water reservoir, and the role of larva monitoring cadres (Jumantik) with the presence of Aedes aegypti mosquito larvae. It is hoped that the Payung Sekaki Community Health Center can provide KIE (Communication, Information, and Education) to the community regarding Dengue Hemorrhagic Fever (DHF), especially how to prevent the presence of Aedes aegypti mosquito larvae and the involvement of Jumantik Cadres is expected to be more active and effective.

Analysis of the relationship of environmental sanitation with the incidence of Dengue Haemorrhagic Fever (DHF) in Mayangrejo Village, Kalitidu District, Bojonegoro Regency

Dengue Hemorrhagic Fever (DHF) is transmitted to humans through the bite of the Aedes aegypti mosquito which can transmit the dengue virus. Dengue Hemorrhagic Fever (DHF) is a type of infectious disease whose number of sufferers and its distribution tends to increase and spread in Indonesia. Factors that influence the occurrence of Dengue Hemorrhagic Fever (DHF) include environmental factors, age, knowledge, attitudes, and behavior. This study aims to determine the relationship between family support (interpersonal) and risky behavior with the incidence of Dengue Hemorrhagic Fever (DHF) in Mayangrejo Village, Kalitidu District, Bojonegoro Regency. An analytic study with a cross sectional design with a population of 3.024 people. Sampling was carried out using the stratified sampling method and obtained a sample of 67 respondents. Collecting data using a questionnaire distributed to residents' homes and data analysis using the Chi-Square Test. Of the 67 respondents, the majority are residents with an elementary education category of 56.72%, ages 21-40 and 41-60 years respectively are 44.78%, location of residence in Gempol is 43.28%, female is 62.69%, not working 61.19%, environment sanitation good is 46,27%, environment sanitation bad is 53,73%. The results of the Chi-Square Test analysis between enviornment sanitation with the incidence of Dengue Hemorrhagic Fever (DHF) in Mayangrejo Village, Kalitidu District, Bojonegoro Regency showed pvalue = 0.029, which means that there is a relationship between the two because of the p-value <0,05.

CASE STUDY OF HOST AND ENVIRONMENT FACTORS ON DHF INCIDENCE IN LIMA PULUH DISTRICT

Background: In the last fifty years, dengue hemorrhagic fever (DHF) has increased 30 times in 100 endemic countries. As a tropical country, Indonesia is one of the endemic countries for DHF cases, which often cause "extraordinary events". Purpose: This research aims to analyze the factors contributing to DHF, including individual and environmental factors. Methods: In November 2022, the unmatched case-control research method was retrospectively used. All DHF cases in Lima Puluh District between January and August 2022, totalling 26 cases, made up the population of this study. The sample in this study was taken based on the total sampling method. The sample consisted of 26 respondents in the case group (those affected by DHF) and 52 respondents in the control group with inclusion criteria (not affected by DHF, distance from house ± 50 meters, age criteria, sex according to the case group) and exclusion criteria (not willing to be a respondent, not in place). The total sample size is 78 respondents, consisting of 26 respondents in the case group and 52 respondents in the control group, with a ratio of 1:2. Results: Based on the results of the chi-square analysis conducted. There was no significant relationship between gender (p = 0.09) and the habit of hanging clothes (p = 0.06) with the occurrence of DHF in Lima Puluh District in 2022. The results of the logistic regression test stated that all host and environmental factors did not have the most dominant variable in the incidence of DHF in Lima Puluh District in 2022. Conclusion: The variable of the existence of breeding places is a dominant factor in the occurrence of DHF in Lima Puluh District in 2022.

Factors causing Dengue Hemorrhagic Fever (DHF) in Sikka District, East Nusa Tenggara Province

Dengue Hemorrhagic Fever (DHF) is a disease caused by infection of the Dengue virus. The incidence of Dengue Fever in Sikka District is the highest in East Nusa Tenggara Province and even in Indonesia at the beginning of 2020. The condition of DHF occurrence in Sikka District is designated as an Extraordinary Event (EE). This study aims to identify some factors including the home environment, biological environment, and social environment that might lead to the occurrence of DHF in Sikka Regency and to determine the risk of a person getting DHF based on the factors. There were 170 respondents from the community of Sikka Regency, where 85 of them have suffered from DHF while the other 85 have never had DHF. The instrument used was a questionnaire containing 22 questions that have been tested for validity and reliability. This is a quantitative study, where the analytical method used is the logistic regression analysis. The results of the analysis showed that the factors that affect a person suffering from DHF are the size of the house, the color of the walls of the house, the habit of draining water reservoirs, the habit of using mosquito repellent, and the participation in cleaning mosquito nests. Based on the value of the odds ratio, it is known that a person with a house area of 36 m2 is more at risk of contracting dengue fever than someone with a house area of 36 m2. Likewise, households that did not participate in cleaning mosquito nests were compared to those who did participate. It is also found that house members who have light wall colors, have a habit of draining water reservoirs, and have a habit of using mosquito repellent are more at risk of contracting DHF than family members whose walls are dark in color, do not have the habit of draining water reservoirs, and do not participate in cleaning mosquito nests.

Climate Factors and DHF Cases in Padang During the COVID-19 Pandemic

Background: Dengue Hemorrhagic Fever is transmitted within regions characterised by tropical weather. The present study reports the incidence rate of Dengue Hemorrhagic Fever (DHF) in Padang City during the year 2021, which is estimated to be 37.2 cases per 100,000 individuals in the community.Purpose: The objective of this study is to examine the correlation between specific components of the physical environment, specifically the climate, and the occurrence of Dengue Hemorrhagic Fever (DHF) in Padang City amidst the Covid-19 Pandemic.Method: The present study employs ecological research methodologies. The study utilised a sample consisting of all instances of dengue hemorrhagic fever (DHF) that were documented at the Padang City Health Service, along with climatic data obtained from the BMKG for the period spanning from March 2020 to March 2022. The findings of the study indicate a temporal increase in cases of dengue hemorrhagic fever (DHF) in Padang City throughout the period from July to December 2021.Result: The findings from the examination of incidences of dengue hemorrhagic fever (DHF) in relation to climate factors during the Covid-19 pandemic revealed a statistically significant association with wind speed (p = 0.018). Wind speed emerged as the prevailing environmental determinant in instances of dengue hemorrhagic fever (DHF) within the Covid-19 pandemic. The wind speed was identified as a climate variable that exerted influence on the occurrence of Dengue Hemorrhagic Fever (DHF) in Padang amongst the Covid-19 pandemic.

The Relationship between Environmental Sanitation and the Incidence of Dengue Hemorrhagic Fever (DHF) in Indonesia

Dengue Hemorrhagic Fever (DHF) was a disease caused by dengue virus belonging to the Arthropod-Borne Virus, which were transmitted through the bite of misquitoes of the genus Aedes, especially Aedes aegypti. The Indonesian Ministry of Health noted that the number of dengue cases in Indonesia from 2018 to 2019 increased significantly. The number of dengue cases as of January 2018 was 6,800 cases with a death toll of 43 people. In early January 2019, there were 13,683 cases with 132 deaths. Cumulatively as of June 21. 2020 there were 68,753 cases. The emergence of dengue disease were related to environmental conditions and community behavior. Research purposes known a relationship between environmental sanitation and the incidence of dengue hemorrhagic fever (DHF) in Indonesia. Reseacrch methodology was a secondary research with a literature review design by doing a search on Google Scholar through the stages of research according to the eligibility criteria. Research result obtained 7 journal that discuss environmental sanitation related to the incidence of dengue hemorrhagic fever (DHF). Of the 7 journals that discuss water reservoirs (TPA) there were 3 journals, 2 journals for garbage disposal, and 4 journals for 3M plus action. The results showed that there were a relationship between when the variable and the occurrence of dengue hemorrhagic fever (DHF). There were a relationship beteween environmental sanitation (water storage, garbage disposal, and 3M Plus measures) with the incidence of dengue hemorrhagic fever (DHF).

RELATIONSHIP BETWEEN HEALTH BEHAVIORS AND INCIDENT OF DENGUE FEVER AND DHF IN THEWORKING AREA OF SINGOSARI PEMATANG SIANTAR HEALTH CENTER

The background in this study is that Dengue Hemorrhagic Fever (DHF) is a public health problem in Indonesia, since 1968 the number of cases has tended to increase and its spread has become wider. The incidence of Dengue Hemorrhagic Fever (DHF) in the working area of ​​the Pematang Raya Health Center in 2008 was recorded as many as 91 cases with 2 fatalities. From the data obtained, it is known that there was a significant increase in the incidence of Dengue Hemorrhagic Fever (DHF) from year to year between 2004-2008. The purpose of this study was to determine what health behaviors were associated with the occurrence of Dengue Hemorrhagic Fever (DHF) in the working area of ​​the Pematang Raya Public Health Center. This type of research was an analytic survey study using a case-control approach. The population in this study were Dengue Hemorrhagic Fever sufferers (cases) and not Dengue Hemorrhagic Fever sufferers (controls). A sample of 40 cases and 40 controls were obtained using simple random sampling technique. The instruments used in this study were 1) questionnaires, 2) data on DHF patients at the Pematang Raya Health Center and DKK Kendal. The data for this study were obtained from primary data, in the form of interview results, and secondary data in the form of DHF patients at the Pematang Raya Health Center and DKK Kendal. The data obtained in this study were analyzed using the Chi-square statistical test formula and the determination of the Odds Ratio (OR). From the research results it was found that the significant factors were: cleaning the water reservoir (p value-0.044, OR=2.513), closing the water reservoir (p value 0.002, OR=4.333), draining water reservoirs (p value 0.004, OR=3.857), burying used goods (p value 0.014, OR-3.095), throwing garbage in its place and burning it (p value-0.043, OR=2.538), hanging clothes (p value=0.001, OR=4.896), and use mosquito repellent lotion (p value=0.002, OR=6.000). From the results of the research and discussion, it can be concluded that health behaviors related to the incidence of Dengue Hemorrhagic Fever (DHF) in the 2018 Pematang Raya Health Center work area, namely cleaning water reservoirs, closing water reservoirs, draining water reservoirs, burying used goods , throwing trash in its place and burning it, hanging clothes, and wearing mosquito repellent.

HUBUNGAN PERILAKU WARGA DI RUMAH DENGAN KONDISI LINGKUNGAN TEMPAT TINGGAL SEBAGAI FAKTOR PENYEBAB DEMAM BERDARAH DENGUE DI KELURAHAN KOTA UNENG KECAMATAN ALOK KABUPATEN SIKKA

This study aims to determine the relationship between the behavior of residents at home and living environmental conditions as a factor causing dengue hemorrhagic fever seen from the behavior of residents at home that affects dengue hemorrhagic fever with environmental conditions where they live as a breeding ground for the aedes aegypti mosquito. The type of research used is descriptive quantitative research. Data collection techniques using questionnaires and observation. Respondents and places of observation in this study were 100 people and 100 houses in the Urban Village of Uneng. The positive analysis technique used in the study was univariate analysis to describe the behavioral variables of residents at home and mosquito population density with the formula for the positive proportion of houses with Aedes aegypty (HI) larvae, percentage of breeding sites with Aedes aegypty (CI) larvae, and number of breeding sites with Aedes aegypty larvae. positive for Aedes aegypti (BI) larvae and the number of houses that are not infected with larvae (ABJ). The results of the study indicate that there is a relationship between the behavior of residents at home and the condition of the living environment as a factor causing dengue hemorrhagic fever. This relationship is due to the dominant behavior of residents at home is the behavior of residents who influence the occurrence of dengue hemorrhagic fever against environmental conditions where the aedes aegypti mosquito larvae are positive. From this relationship, it was concluded that in Uneng City Village, it was very likely that residents at home could experience dengue hemorrhagic fever. This is based on the magnitude of the Bretau Index (BI) figure of 53% and the larva-free rate (ABJ) of 62%

Revitalisasi pelaksanaan kegiatan juru pemantau jentik di era pandemi Covid-19 di Kampung Pelita Medika I Kampung Pelita Medika 1 di Kelurahan Meranti Pandak Kota Pekanbaru

Pelita Medika 1 Village Meranti Pandak Village is an endemic area for dengue hemorrhagic fever (DHF). This is supported by environmental conditions and community behavior that is at risk for the occurrence of DHF. Therefore, since 2018 in the area, larval monitoring activities have been carried out. Since 2019 it has stopped until now. Therefore, it is necessary to revitalize the implementation of the larva monitoring activities, especially in the current era of the COVID-19 pandemic. Where the purpose of this revitalization is to refresh the knowledge and skills of jumantik cadres in the implementation of larva monitoring and motivate these cadres to commit to carrying out these activities regularly. This activity is carried out through counseling, training, demonstration, and role play methods. The learning media used are using power points for presentations, video playback of larva monitoring activities. This activity resulted in an increase in the knowledge and skills of the jumantik cadres in carrying out larva monitoring, as well as a declaration of commitment to reactivate larva monitoring activities with the 1 house 1 jumantik program.

Analysis of the Factors that Cause Dengue Hemorrhagic Fever (DHF) Using Chi-Square Automatic Interaction Detection (CHAID)

The low level of public awareness of environmental cleanliness has led to the spread of dengue hemorrhagic fever (DHF). This study aims to identify and analyze the factors that cause dengue hemorrhagic fever (DHF) using the Chi-Square Automatic Interaction Detection (CHAID) method. This type of research is applied research, namely research conducted to apply, test, and evaluate the ability of a theory that is applied in solving practical problems. This research was conducted at the University of Kaltara by taking quantitative data on dengue hemorrhagic fever (DHF) patients recorded at the Bulungan District Health Office. The analytical method used is the Chi-Square Automatic Interaction Detection (CHAID) tree-structured classification method with the Statistical Package for the Social Sciences (SPSS) program. Based on the study results, it was found that five factors caused the occurrence of dengue hemorrhagic fever (DHF) in Bulungan Regency. They are Gender, Age, Work Status, Environment, and Household Income. Based on the CHAID analysis using the IBM SPSS Statistics computer program, a decision tree is formed, which consists of 5 nodes consisting of 1 main node (node 0), one decision node (node 1), and 3 terminal nodes (node 2, 3 and 4). The predictor variables that affect the formation of the decision tree are Age and Household Income. DHF patients can be classified into three different segments from the segmentation decision tree with an estimated risk of 0.273, which means the risk of the wrong classification for DHF status is 27.3%.

RELATIONSHIP BETWEEN HEALTH BEHAVIOR AND THE EVENT OF DENGUE HEAVENLY FEVER (DHF)

The incidence of Dengue Hemorrhagic Fever (DHF) in the working area of ​​the Cepiring Health Center in 2008 was recorded as 91 cases with 2 deaths. The purpose of this study was to determine what health behaviors were associated with the occurrence of Dengue Hemorrhagic Fever (DHF) in the working area of ​​the Cepiring Health Center. This type of research is an analytical survey research using a case-control approach. The instruments used in this study were 1) questionnaires, 2) data on patients with dengue fever at the Cepiring Health Center and DKK Kendal. From the results of the study, it was found that the significant factors were: cleaning water reservoirs (p value = 0.044, OR = 2.513), closing water reservoirs (p value = 0.002, OR = 4,333), draining water reservoirs (p value = 0.004, OR=3.857), burying used goods (p value=0.014, OR=3.095),

Penerapan 3M Terhadap Pencegahan Kejadian DBD di Wilayah Puskesmas Panambungan Kota Makassar

Dengue Hemorrhagic Fever (DHF) is a contagious disease caused by the dengue virus through the bite of an Aedes mosquito. One of the causes of this DHF incident is the poor sanitation of the environment around residential areas, efforts to prevent dengue fever are breaking the transmission chain by controlling the vector through the eradication of mosquito nests (PSN) and the implementation of the 3M movement.This study aimed to determine the description of the implementation of 3M in the working area of ?? Panambungan Health Center, Makassar.The type of this research was is a quantitative study with a descriptive approach. Data collection was carried out from September to October 2020. The population was all people who live in Kel. Panambungan. Data were collected through interviews using an observation sheet and a questionnaire. In the activity of draining water reservoirs, 67 (83.8%) families conducted this activity properly, while the other 13 (16.2%) families less conducted this activity. In the activity of burying used goods, 18 (22.5%) families conducted this activity properly, while the other 62 (77.5%) families less conducted this activity. Finally, in the activity of closing water reservoirs, 24 (30.4%) families conducted this activity properly, while the other 55 (69.6%) families less conducted this activity. Based on the results of the study, it is recommended to the public to pay attention to environmental conditions to prevent the occurrence of DHF.

PENGARUH FAKTOR LINGKUNGAN DAN PERILAKU MASYARAKAT DENGAN KEJADIAN DBD DI SIBOLGA TAHUN 2020

DHF in Indonesia is an emerging disease with an increasing incidence from year to year. DHF attacks can have widespread consequences that can cause material and moral damage and the most fatal can result in loss of life or death. The purpose of this study was to determine the effect of environmental factors and people's behavior on the occurrence of Dengue Hemorrhagic Fever in Sibolga City in 2020. This type of research is case control design. Sample was 112 people. Samples were taken by simple random sampling method. Data collection was carried out using questionnaires and observations. The test used is multiple logistic regression test. The results of the study are there are effects of water reservoirs on the occurrence of Dengue Hemorrhagic Fever, Odd Ratio (OR) value = 14,824. There is an influence of residential density on the occurrence of Dengue Hemorrhagic Fever, Odd Ratio (OR) value = 10.501. There is an influence of the presence of gauze on the ventilation of the house to the incidence of dengue fever, the value of the Odd Ratio (OR) = 9,923. There is an effect of container index (CI) on the occurrence of Dengue Hemorrhagic Fever, Odd Ratio (OR) value = 23,699. There is an influence of the habit of hanging clothes on the occurrence of Dengue Fever, the value of Odd Ratio (OR) = 10.542. There is an influence of PSN habits on the occurrence of Dengue Hemorrhagic Fever, Odd Ratio (OR) value = 21,414. There is an influence of knowledge on the occurrence of Dengue Fever, the value of Odd Ratio (OR) = 12,128. There is an effect of action on the occurrence of Dengue Hemorrhagic Fever, Odd Ratio (OR) value = 9,711, Increasing efforts to eradicate Dengue Hemorrhagic Fever (PSN-DBD) mosquito nests such as draining / cleaning places that are often used as water reservoirs, closing water reservoirs such as drums, jugs, water torens, etc.; and reuse or recycle used goods that have the potential to become breeding grounds for dengue-infecting mosquitoes

Hubungan Perilaku dengan Kejadian Penyakit Demam Berdarah Dengue di Wilayah Kerja Puskemas Bakunase Kota Kupang

Dengue Hemorrhagic Fever (DHF) is a disease caused by the dengue virus and transmitted through mosquito bites. The Aedes aegypti mosquito is the main vector. However, other species such as Aedes albopictus can also be vector transmitters. Some of the factors that influence the occurrence of DHF include low immunity status of community groups and increased mosquito population density due to the large number of breeding places in the rainy season. Currently, DHF is still a common disease and is one of the main public health problems in Indonesia. The number of cases of dengue fever in East Nusa Tenggara (NTT) Province in 2015 was 665 cases, in 2016 as many as 1,213 cases, and in 2017 as many as 542 cases. This study aims to analyze the relationship between behavior and the incidence of dengue fever in the working area of ​​the Bakunase Health Center, Kupang City. This study was an analytic observational study with a case-control design. Data were collected in January-February 2020. The results of this study indicate that there is no significant relationship between knowledge and attitude with the incidence of DHF, while action has a significant relationship with the incidence of DHF. Community empowerment efforts related to preventive measures need to be prioritized so that the risk of DHF disease can be reduced.

P R O M O S I K E S E H A T A N P A D A P E N D E R I T A D E M A M B E R D A R A H D E N G U E M E L A L U I P E N Y U

Mental health is a condition of subjective feeling of well-being, a self-assessment of feelings which includes aspects of self-concept, fitness and the ability to control oneself. The purpose of conducting counseling in Siguci Village, STM Hilir Subdistrict, Deli Serdang Regency is to implement a community or community health diagnosis which essentially identifies, formulates and compiles public health problems. Developing a program to handle public health problems that is promotive and preventive in nature and is a learning process to gain professionalism skills. The approach to health problems is carried out through a survey method with a Cross Sectiona l approach based on the stages of community diagnosis. Community Diagnosis is defined as a description or description of public health and the factors that affect the health of the local community both quantitatively and qualitatively. Based on primary data, the risk factors for the occurrence of dengue hemorrhagic fever in Dusun I Siguci Village are mostly caused by Clean and Healthy Lifestyle (PHBS), Waste Management, Community Waste Disposal and a priority for health problems is the incidence of dengue hemorrhagic fever.

Hubungan Perilaku Kesehatan dengan Kejadian Demam Berdarah Dengue (DBD) di Wilayah Kerja Puskesmas Ma. Kumpeh Kecamatan Kumpeh Ulu Kabupaten Muaro Jambi

The incidence of Dengue Hemorrhagic Fever (DHF) in the working area of Puskesmas Ma. Kumpeh in 2019 recorded as many as 73 cases with 1 victim died. The data obtained shows that there is a significant increase in the incidence of Dengue Hemorrhagic Fever from year to year between 2015-2019. The purpose of this study was to determine what health behaviors are associated with the occurrence of Dengue Hemorrhagic Fever (DHF) in the working area of Puskesmas Ma. Kumpeh Kumpeh Ulu Subdistrict, Muaro Jambi Regency. This type of research is an analytic survey using a case-control approach. The population of this study were Dengue Hemorrhagic Fever sufferers (cases) and not Dengue Hemorrhagic Fever sufferers (controls). A sample of 40 cases and 40 controls was obtained using simple random sampling technique. The instrument used was a questionnaire. Data were analyzed using Chi-square statistical test and determination of Odds Ratio (OR). The results showed that there was a relationship between health behavior and the incidence of Dengue Hemorrhagic Fever (DHF) in the Puskesmas Ma area. Kumpe in 2020, namely cleaning water reservoirs, closing water reservoirs, draining water reservoirs, burying used goods, disposing of garbage in its place and burning it, hanging clothes, and wearing mosquito repellent lotions. It is advisable for health workers to pay more attention to health behavior or daily habits because they are important in the transmission and spread of DHF and need further research.

Safety of temporary interruption of antiplatelet therapy in dengue fever with thrombocytopenia

Thrombocytopenia commonly occurs in dengue and may be complicated by bleeding. Dengue can occur in adults who may be on long term antiplatelet therapy for ischemic heart disease or stroke. In these cases, clinicians may temporarily discontinue antiplatelet therapy to minimize the risk of bleeding in the absence of clear guidelines. We conducted a retrospective cohort study of laboratory-confirmed adult dengue patients on antiplatelet therapy and evaluated participants whose antiplatelet therapy was continued versus discontinued. Primary outcome was a composite outcome of major adverse cardiac and cerebrovascular events (MACCE), and all-cause mortality in-hospital and for 1-year post discharge. Secondary outcomes were platelet and blood transfusion, and occurrence of dengue haemorrhagic fever (DHF), dengue shock syndrome, dengue with warning signs and severe dengue according to World Health Organization criteria. Discontinuation of antiplatelet therapy did not result in higher composite outcome (p=0.192). Continuation of antiplatelet therapy did not result in more platelet or blood transfusion (p=0.489 and p=0.567 respectively), DHF (p=0.923). Our results suggest that discontinuation or continuation of antiplatelet therapy based on clinical judgement in dengue with thrombocytopenia, is largely safe but further studies are needed.

Factors Associated with the Incidence of Dengue Hemorrhagic Fever (DHF) at the Suruh Trenggalek Health Center

Background: Dengue Hemorrhagic Fever (DHF) is one of the public health problems in Indonesia which tends to increase in the number of patients and the wider its spread. The purpose of this study was to determine the factors for the occurrence of Dengue Hemorrhagic Fever (DHF) in the Public Health Center in Suruh Trenggalek. Method: The research design used is quantitative with a "cross sectional" approach. The sampling technique used is Simple Random Sampling with a sample of 108 respondents. Data analysis technique using Logistic Regression. Results: The results showed that there was a relationship between the habit of hanging clothes with the incidence of dengue hemorrhagic fever, with a p-value of 0.000 < = 0.05. The results showed that there was a relationship between the frequency of bathtub draining and the incidence of dengue hemorrhagic fever, with a p-value of 0.000 < = 0.05. The results showed that there was a relationship between the presence of larvae with a p-value of 0.000 < = 0.05. Simultaneous test results also show the influence of all variables on the incidence of dengue hemorrhagic fever with a p-value of 0.000 < = 0.05. Conclusion: It is hoped that there will be cooperation between local village government health officers and the community in order to minimize the incidence of dengue hemorrhagic fever

Relationship between Ventilation, Light Intensity and Conditions for Water Reservoirs in the House with the Occurrence of Dengue Hemorrhagic Fever in Medan City in 2019

Dengue hemorrhagic fever is an infectious disease caused by dengue virus and is transmitted through the bite of the Aedes aegypti or Aedes albopictus mosquito. Ventilation and light intensity are physical controls to reduce the risk of outbreaks of DHF. Medan is one of the cities that is endemic for DHF, so DHF cases continue to occur and even increase every year. In 2018 cases of dengue hemorrhagic fever have increased as many as 1490 cases with a death rate of 13 people. This study aims to analyze the relationship between ventilation, light intensity and water storage conditions with the incidence of DHF. This type of research is descriptive, with case control design. The study population was 98 households, the study sample consisted of 49 cases and 49 controls. Data collection through observation and measurement. Data analysis methods include univariate analysis, bivariate analysis using chi square. The univariate analysis results demonstrated that the dengue hemorrhagic fever cases had higher prevalence rate in August (41%) and had dominant attack on 3-14 year old people (39%) as well as on females (59%). The bivariate analysis results indicated that lighting (OR= 9.474), ventilation (OR= 5.949) and condition of water reservoirs (OR= 4.769) were correlated with prevalence of dengue hemorrhagic fever. It was suggested to the public to pay attention to the intensity of light inside the house and install a wire mesh on the ventilation if the home environment contained a lot of DHF vectors and closed water reservoirs.

Maternal Passive Immunity and Dengue Hemorrhagic Fever in Infants.

Dengue hemorrhagic fever (DHF) can occur in primary dengue virus infection of infants [Formula: see text]year of age. To understand the presumed role of maternal dengue-specific antibodies received until birth in the development of this primary DHF in infants, we investigated a mathematical model based on a system of nonlinear ordinary differential equations that mimics cells, virus and antibodies interactions. The neutralization and enhancement activities of maternal antibodies against the virus are represented by a function derived from experimental data and knowledge from the medical literature. The analytic study of the model shows the existence of two equilibriums, a disease-free equilibrium and an endemic one. We performed the asymptotic stability analysis for these two equilibriums. The local asymptotic stability of the endemic equilibrium (DHF equilibrium) corresponds to the occurrence of DHF. Numerical results are also presented in order to illustrate the mathematical analysis performed, highlighting the most important parameters that drive model dynamics. We defined the age at which DHF occurs as the time when the infection takes off that means at the inflection point of the curve of infected cell population. We showed that this age corresponds to the one at which maximum enhancing activity for dengue infection appears. This critical time for the occurrence of DHF is calculated from the model to be approximately 2months after the time for maternal dengue neutralizing antibodies to degrade below a protective level, which corresponds to what is observed in the experimental data from the literature.