scholarly journals Risk factors of adult Dengue Fever in urban community of Nepal

2021 ◽  
pp. 064-069
Author(s):  
Shah Harishchandra ◽  
Pandey Basu Dev
Keyword(s):  
Risk Factors ◽  
Social Class ◽  
Dengue Fever ◽  
Dengue Infection ◽  
Random Sample Size ◽  
Class Level ◽  
Control And Prevention ◽  
Level Of Knowledge ◽  
Water Tanks ◽  
Control Study

With the objectives of determining the association between risk factors and Dengue Fever (DF), a case-control study with a random sample size of 102:102 in each was conducted at Hetauda and Kamalamai Municipalities, Nepal. The hypothesis of risk factors for DF like low level of knowledge about DF, discarded receptacles, old tires, containers, etc. nearby house, and use of stagnant AC/Coolers was used to conduct the study. Traveling to DF affected areas nearly 2 weeks before the onset of disease was significantly associated with dengue fever (OR= 6.10, 95% cl: 1.31-28.34, p<0.021). Waste disposal of old containers, receptacles, tires during the rainy season were significantly associated with the incidence of DF (AOR= 6.308, 96% cl: 2-751-14.462, p<0.000). The frequency of DF was associated with the middle social class level (p<0.05, d. f. 2). Uncovered water tanks of the household were significantly associated with DF (AOR= 3.78, 95% cl: 1.51-9.45, p<0.0043). As the number of families increases in the household, the number of cases increases with a positive correlation (r = +0.62). Crowded households with more than 2 occupants in one room were at risk of dengue infection. The study concluded that DF was associated with the risk factors of traveling to endemic areas, discarded waste containers, receptacles, tires, and uncovered water tanks, middle social class, and crowded households. Public health managers should prioritize these risk factors while planning for DF control and prevention.

scholarly journals A community based case-control study to determine the risk factors of dengue fever in Bangladesh

2021 ◽  
Author(s):  
Md. Sahidur Rahman ◽  
Fatema Mehejabin ◽  
Rumana Rashid
Keyword(s):  
Risk Factors ◽  
Dengue Fever ◽  
Potential Risk ◽  
Case Control Study ◽  
Dengue Infection ◽  
Significant Risk ◽  
Case Control ◽  
College Hospital ◽  
Tropical Country ◽  
Control Study

In a tropical country like Bangladesh where the climatic condition favors the growth of Aedes mosquito vectors, the success of dengue prevention depends largely on the proper identification and controlling of the socio-demographic and lifestyle-related risk factors. A case-control study including 150 cases and 150 controls were conducted aimed to explore the potential risk and protective factors and their association with dengue virus infection in the Chattogram district of Bangladesh. Cases were confirmed for dengue patients admitted in Chattogram medical college hospital and Bangladesh institute of tropical and infectious diseases during August and September 2019. Whereas, controls were non-dengue patients admitted in other departments of the same hospitals through gender age and location matching. The questionnaire data were collected through telephone-based interviews which included information regarding general demography, daily life activities, housing with its surroundings status. Chi-square and binary logistic regression were performed for identifying potential risk factors and their association with the occurrences of dengue fever. The study found that travel history to the high incidence area, the place of staying most of the time, living in 21 to 40 years old houses, and the temporary residence of the city were statistically significant risk factors for getting the dengue infection. On contrary, Quality of indoor daylight, ventilation, bus stand/garage, stagnant water, and any construction site around 250 meters of the house did not show significant association with dengue fever.

scholarly journals 1405. Clinical and laboratory features of fatal dengue fever in children: a case-control study

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S710-S711
Author(s):  
Dolores E Freire ◽  
Jeniffer D Olaya ◽  
Michael Hawkes
Keyword(s):  
Dengue Fever ◽  
Case Control Study ◽  
Dengue Infection ◽  
Healthcare Providers ◽  
Case Control ◽  
Warning Signs ◽  
Total Leukocyte Count ◽  
Retrospective Case ◽  
Time To Death ◽  
Control Study

Abstract Background Dengue fever (DF) is a mosquito-borne illness that causes significant morbidity and mortality in tropical climates. This study compared the clinical features of fatal DF cases to severe non-fatal, and non-severe controls in Ecuador. Methods Retrospective case-control study of children (1 month to 15 years) hospitalized with serologically-confirmed DF in Guayaquil, Ecuador from 2013 to 2017. Cases of severe, fatal (SF) DF were compared to two control groups: (1) severe DF survivors (SS); and (2) patients with dengue with warning signs (DWS), matched 3:1 to cases for age, sex, and admission date. Observational trial profile Results 1051 patients were admitted with suspected DF and 552 were IgM-positive. Patients were classified as SF (n=11), SS (n=30), or DWS (n=511) (Figure1). Among SF cases, median age was 9.6 years (IQR 5.5-11), 7 (64%) were male, and median time to death was 1.5 days (IQR 0.8-4.0). (Table 1) SF cases had a median of 3 (Range 0-5) encounters with healthcare providers prior to presentation, compared to 2 (Range 0-5, p=0.02) for SS and 2 (Range 0-3, p=0.02) for DWS. Physical findings more common in SF cases than controls included: higher weight, tachycardia, tachypnea, delayed capillary refill, and hepatomegaly (p&lt; 0.05 for all comparisons). Neurological manifestations were more prevalent in the SF group: 9/11 (82%) patients compared to 15/30 (50%, p=0.09) in SS and 7/33 (21%, p&lt; 0.01) in DWS. Total leukocyte count (7.8x103/µL versus 4.5x103/µL, p=0.03) and absolute neutrophil count (5.1x103/µL versus 2.1x103/µL, p=0.03) were higher in SF cases than DWS controls. Fewer SF patients received intravenous dextrose than SS controls (27% versus 70%, p=0.03) (Table 2). Admission characteristics of children with dengue fever Management and outcome Conclusion Delayed recognition by healthcare workers, higher weight, vital sign abnormalities, hepatomegaly, neurological symptoms, leukocytosis, neutrophilia, and lack of dextrose in intravenous solutions were associated with mortality in children with DF. These findings have implications for optimizing the diagnosis and management of severe pediatric dengue infection. Disclosures All Authors: No reported disclosures

scholarly journals Risk factors of dengue fever in an urban area in Vietnam: a case-control study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Thang Nguyen-Tien ◽  
Duy Cuong Do ◽  
Xuan Luat Le ◽  
Thi Hai Dinh ◽  
Mats Lindeborg ◽  
...  
Keyword(s):  
Risk Factors ◽  
Dengue Fever ◽  
Prevention And Control ◽  
Case Control Study ◽  
Case Control ◽  
Younger Adults ◽  
The Mean ◽  
Dengue Prevention ◽  
And Control ◽  
Control Study

Abstract Background Dengue is a mosquito-borne flavivirus present in many metropolitan cities of tropical countries. Methods During and after the dengue season (September 2018 to January 2019), we conducted a case-control study in order to determine the risk factors for dengue fever in Hanoi city, Vietnam. 98 dengue patients and 99 patients with other acute infections, such as Hepatitis B virus infection, were recruited at Department of Infectious Disease of Bach Mai national hospital in Hanoi. Patients were interviewed using a structured questionnaire covering demographic, housing, environmental factors and knowledge, attitude, and practice on dengue prevention and control. Univariate analysis and multivariable logistic regression were used to determine the risk factors of dengue status. Results The mean score of knowledge items and practice items was only 7.9 out of total 19 points and 3.9 out of total 17 points, respectively. While the mean score of attitude items was 4.8 out of total 6 points. Multivariable logistic regression indicated that older patients had lesser risk of getting dengue infection as compared to younger adults aged 16–30, and patients living in peri-urban districts were less likely to suffer of dengue fever than patients living in central urban districts (OR = 0.31; 95% CI 0.13–0.75). This study could not find any association with occupation, water storage habit, knowledge, attitude, or practice on dengue prevention. Conclusions All patients had a relatively low level of knowledge and practice on dengue prevention and control. However, the attitude of the participants was good. We found that age group and living district were the risk factors correlated with the dengue status. Communication programs on raising dengue awareness should be repeated all year round and target particular groups of adolescents, younger adults, landlords and migrants from other provinces to improve their knowledge and encourage them to implement preventive measures against dengue fever.

Risk Factors Associated With Dengue Fever Outbreak in Taiz Governorate, Yemen, 2018: Case-control Study

2021 ◽  
Author(s):  
Abdulkareem Ali Hussein Nassar ◽  
Amr Abdulaziz Torbosh ◽  
Yassin Abdulmalik Mahyoub ◽  
Mohammed Abdullah Al Amad
Keyword(s):  
Risk Factors ◽  
Dengue Fever ◽  
Case Control Study ◽  
Significant Risk ◽  
Case Fatality ◽  
Case Control ◽  
Case Definition ◽  
P Value ◽  
Factors Associated ◽  
Control Study

Abstract Background: Dengue Fever (DF) is a significant health problem in Yemen especially in the coastal areas. On November 6, 2018, Taiz governorates surveillance officer notified the Ministry of Public Health and Population on an increase in the number of suspected DF in Al Qahirah and Al Mudhaffar districts, Taiz governorate. On November 7, 2018, Field Epidemiology Training Program sent a team to perform an investigation. The aims were to confirm and describe the outbreak by person, place and time in Taiz governorate, and identify its risk factors.Methodology: Descriptive and case-control study (1:2 ratio) were conducted. WHO case definition was used to identify cases in Al Qahirah or Al Mudhaffar districts during August-November 2018. Control was selected from the same districts who did not suffer from DF. Predesigned questionnaire was used to collect data related to sociodemographic, behavioral and environmental characteristics. Bivariate and multivariate backward stepwise analyses were used. The adjusted odds ratios (aOR) and 95% confidence intervals (95%CI) were calculated. A P value < 0.05 was considered as the cut point for statistically significant. Epi info version 7.2 was used.Results: A total of 50 DF cases were found. Almost 52% were males and 76% were <30 years of age. The overall attack rate was 1/10,000 of the population. Case fatality rate was 4%. In multivariate analysis, not working (aOR = 26.6, 95% CI: 6.8–104.7), not using mosquito repellent (aOR = 13.9, 95% CI:1.4–136.8), wearing short sleeves/pants (aOR = 27.3, 95% CI: 4.8–156.8), poor sanitation (aOR = 5.4, 95% CI: 1.4–20.3), presence of outdoor trees (aOR = 13.2, 95% CI: 2.8–63.0) and houses without window nets (aOR = 15.7, 95% CI: 3.9–63.4) were statistically significant risk factors associated with DF outbreak. Eleven 11 (58%) of blood samples were positive for DF IgM.Conclusions: DF outbreak in Al Qahirah and Al Mudhaffar districts, Taiz governorate was confirmed. This study provides evidence-based information regarding the identified risk factors that contributed to the occurrence of this outbreak. Raising community awareness on the importance of personal protection measures and improving the sanitation services are strongly recommended.

scholarly journals Incidence of Dengue Infection among Febrile Patients in Port Sudan

2020 ◽  
pp. 1-6
Author(s):  
AreegSalih Abdel Aziz Ahmed ◽  
◽  
Tahani Bashir Mohammeddeen Ahmed ◽  
Keyword(s):  
Risk Factors ◽  
Dengue Fever ◽  
Clinical Symptoms ◽  
Venous Blood ◽  
Dengue Infection ◽  
Tertiary Care ◽  
Reproductive Age ◽  
Occurrence Rate ◽  
Clinical Feature ◽  
Hematological Indicators

Objective: Aiming to detect dengue virus antibodies in clinically suspicious patients’ serum, contributing to clinical and laboratory advancements in dengue infection management, exploring the association between a clinico-laboratory makeup and Dengue fever, and enhancing the capacity to anticipate, diagnose, and respond to dengue infection. Methods: At Port Sudan 2015, a descriptive cross-sectional hospital-based study was implemented. Six tertiary care hospitals in Port Sudan were included in the report. Patients who attended assigned hospitals with a suspected dengue infection were investigated. Individuals who are at least 9 months old, residency in study area for at least 7 days, pyrexia with unspecified cause for 2-7 days, thrombocytopenia in malaria negative blood film, as well as ages of 9 months and older considerably involved. Gender, age, residency, and clinical symptoms were used as independent variables while dengue patients posing as the dependent variable. Sample size approximation was created based on previous African community studies. To target respondents, a randomized cluster model was used. Information was gathered through direct interview, as well as questionnaire after signed a consent form. 5ml of venous blood withdraw by a professional nurse from each respondent, then examined for hematological indicators of dengue fever using Sysmex XP-300 Automated Hematology Analyzerand dengue specific IgM antibodies using Panbio® Dengue IgM Capture ELISA. Entering data and analysis of the volunteers’ characteristics, the Statistical Package for Social Sciences program (SPSS Inc., Chicago, IL, USA) version 20 was used. Incredibly simple descriptive statistics were used to analyze the laboratory results of the Dengue indicators as well as risk factors. Results: The study involved 83 cases out of 110 that were tested by ELISA at different hospitals in Port Sudan and determined to be diagnosed with the dengue virus.The incidence rate among febrile patients was 75% (68 cases), with DF documented in 80 cases (96%) and DHF in three scenarios (4%). higher prevalence within the (21-30) age category 50/110. (45%).High occurrence rate during July (63 cases) (57%). Fever was the most noticeable clinical feature 79/83(95%, more evident hematological indicators included thrombocytopenia and leucopenia (88%) 97 out of 110 (71%) 78/110 in each event. Most of study subjects were unaware regarding risk factors with exception of transmission mode. Conclusions: Study reported high incidence among suspected febrile participants. Most of patients presented as DF, with greater occurrence among reproductive age group and during July.Thrombocytopenia and leucopenia were more prominent clinical manifestations.With the exception of the mode of transmission, the majority of study respondents were unaware of the risk factors.

scholarly journals Household survey on attitude and practice toward dengue infection among rural dwellers

2019 ◽  
Vol 6 (11) ◽  
pp. 4651
Author(s):  
Nur Shafikah Hamfadi ◽  
Nur Syahmina Rasudin ◽  
Noraini Abdul Ghafar
Keyword(s):  
Dengue Fever ◽  
Rural Area ◽  
Dengue Infection ◽  
Household Survey ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Tropical Regions ◽  
Attitude And Practice ◽  
Level Of Knowledge ◽  
Knowledge Attitude And Practice

Background: Dengue fever is the most important mosquito-borne disease that has rapidly spread in tropical regions of the world in recent years. Due to absence of vaccine, the only method available is to prevent and control dengue is by preventing transmission of the disease. However, the control needs support, cooperation and participation from community. The objective of this study is to assess the current level of knowledge, attitude and practice toward dengue fever among the community living in rural area, beside to ascertain the association between those three domains, and to evaluate the effect of sociodemographic factors toward them.Methods: A cross sectional survey was performed among 202 respondents dwelling in rural area, whom were selected through stratified random sampling. Knowledge, attitude, and practice toward dengue fever were assessed through a set of self-administered validated questionnaire.Results: The community had moderate level of knowledge (64.4%), positive attitude (79.7%), and good level of practices (65.3%) on dengue fever. Television was the main source of information on dengue fever (76.2%). From the result, there were significant association between level of education with practice on dengue fever (p=0.001). The result also shown that there was significant association between knowledge and practice in the community (p=0.008).Conclusions: More health education programmes should be organized to increase knowledge and help the translation of knowledge into practice of prevention.

scholarly journals ASSESSMENT OF KNOWLEDGE, ATTITUDES AND PRACTICE TOWARD DENGUE FEVER AMONG UNIVERSITY STUDENTS IN MALAYSIA

2021 ◽  
Vol 3 (1) ◽  
pp. 289-300
Keyword(s):  
University Students ◽  
Dengue Fever ◽  
Dengue Infection ◽  
Febrile Illness ◽  
Simple Random Sampling ◽  
Health Concern ◽  
P Value ◽  
Cross Sectional ◽  
Level Of Knowledge ◽  
Dengue Prevention

Introduction: Dengue fever is an acute febrile illness with a significant public health concern in tropical and subtropical countries. Population knowledge and practice play an essential role in the transmission and prevention of the disease. This study aims to evaluate the level of knowledge, attitudes, and practice regarding dengue fever among Malaysian university students. Methods: A cross-sectional descriptive study was conducted in twenty-five randomly selected universities across Malaysia. A total of 1520 respondents were approached by simple random sampling method. A previously validated and published questionnaire was used with little modification. The associations between the level of knowledge, Attitudes, and practice with different risk factors were calculated statistically and the significant association was considered with a p-value <0.05. Results: The data were analysed and showed that most of the students (56.3%, 46.2%, and 43.3%) has a moderate level of knowledge, attitude, and practice respectively toward dengue infection among the respondents. The result shows a significant association between the level of practice and knowledge (p-value <0.001) as well as between the level of practice and attitudes (p-value <0.001). Conclusion: The significant association between the practice and knowledge along with attitudes indicates the more knowledge and attitudes lead to better practice. This study highlighted the important role of university students in dengue prevention-based programs. They should be exposed more to improve and transfer their knowledge and attitude to other community population to reduce the incidence of dengue not only in Malaysia but globally.

scholarly journals Risk Factors Aassociated with Dengue Fever Outbreak in Islamabad, Pakistan: A Case-Control Study (Preprint)

10.2196/27266 ◽  
2021 ◽  
Author(s):  
Chaudhry Amjad Mehmood ◽  
Fawad Khalid Khan ◽  
Ambreen Chaudhry ◽  
Zakir Hussain ◽  
Mumtaz Ali Laghari ◽  
...  
Keyword(s):  
Risk Factors ◽  
Dengue Fever ◽  
Case Control Study ◽  
Case Control ◽  
Control Study

scholarly journals Risk Factors of Dengue Fever in an Urban Area in Vietnam: A Case-Control Study

2020 ◽  
Author(s):  
Thang Nguyen-Tien ◽  
Do Duy Cuong ◽  
Le Xuan Luat ◽  
Dinh Thi Hai ◽  
Mats Lindeborg ◽  
...  
Keyword(s):  
Risk Factors ◽  
Dengue Fever ◽  
Prevention And Control ◽  
Case Control Study ◽  
Case Control ◽  
Younger Adults ◽  
The Mean ◽  
Dengue Prevention ◽  
And Control ◽  
Control Study

Abstract Background: Dengue is a mosquito-borne flavivirus present in many metropolitan cities of tropical countries. Methods: During and after the dengue season (September 2018 to January 2019), we conducted a case-control study in order to determine the risk factors for dengue fever in Hanoi city, Vietnam. 98 dengue patients and 99 patients with other acute infections were recruited at Department of Infectious Disease of Bach Mai national hospital in Hanoi. Patients were interviewed using a structured questionnaire covering demographic, housing, environmental factors and knowledge, attitude, and practice on dengue prevention and control. Results: The mean score of knowledge items and practice items was only 7.9 out of total 19 points and 3.9 out of total 17 points, respectively. While the mean score of attitude items was 4.8 out of total 6 points. Multivariable logistic regression indicated that older patients had lesser risk of getting dengue infection as compared to younger adults aged 16-30, and patients living in peri-urban districts were less likely to suffer of dengue fever than patients living in central urban districts (OR = 0.31; 95% CI 0.13-0.75). This study could not find any association with occupation, water storage habit, knowledge, attitude, or practice on dengue prevention. Conclusions: All patients had a relatively low level of knowledge and practice on dengue prevention and control. However, the attitude of the participants was good. We found that age group and living district were the risk factors correlated with the dengue status. Communication programs on raising dengue awareness should be repeated all year round and target particular groups of adolescents, younger adults, landlords and migrants from other provinces to improve their knowledge and encourage them to implement preventive measures against dengue fever.

scholarly journals Another dengue fever outbreak in Eastern Ethiopia—An emerging public health threat

2021 ◽  
Vol 15 (1) ◽  
pp. e0008992
Author(s):  
Mulugeta Asefa Gutu ◽  
Alemayehu Bekele ◽  
Yimer Seid ◽  
Yusuf Mohammed ◽  
Fekadu Gemechu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Dengue Fever ◽  
Case Control Study ◽  
Larval Density ◽  
Case Control ◽  
Control Measures ◽  
Severe Dengue ◽  
Vector Surveillance ◽  
Eastern Ethiopia ◽  
Control Study

Background Dengue Fever (DF) is a viral disease primarily transmitted by Aedes (Ae.) aegypti mosquitoes. Outbreaks in Eastern Ethiopia were reported during 2014–2016. In May 2017, we investigated the first suspected DF outbreak from Kabridahar Town, Somali region (Eastern Ethiopia) to describe its magnitude, assess risk factors, and implement control measures. Methods Suspected DF cases were defined as acute febrile illness plus ≥2 symptoms (headache, fever, retro-orbital pain, myalgia, arthralgia, rash, or hemorrhage) in Kabridahar District residents. All reported cases were identified through medical record review and active searches. Severe dengue was defined as DF with severe organ impairment, severe hemorrhage, or severe plasma leakage. We conducted a neighborhood-matched case-control study using a subset of suspected cases and conveniently-selected asymptomatic community controls and interviewed participants to collect demographic and risk factor data. We tested sera by RT-PCR to detect dengue virus (DENV) and identify serotypes. Entomologists conducted mosquito surveys at community households to identify species and estimate larval density using the house index (HI), container index (CI) and Breteau index (BI), with BI≥20 indicating high density. Results We identified 101 total cases from May 12–31, 2017, including five with severe dengue (one death). The attack rate (AR) was 17/10,000. Of 21 tested samples, 15 (72%) were DENV serotype 2 (DENV 2). In the case-control study with 50 cases and 100 controls, a lack of formal education (AOR [Adjusted Odds Ratio] = 4.2, 95% CI [Confidence Interval] 1.6–11.2) and open water containers near the home (AOR = 3.0, 95% CI 1.2–7.5) were risk factors, while long-lasting insecticide treated-net (LLITN) usage (AOR = 0.21, 95% CI 0.05–0.79) was protective. HI and BI were 66/136 (49%) and 147 per 100 homes (147%) respectively, with 151/167 (90%) adult mosquitoes identified as Ae. aegypti. Conclusion The epidemiologic, entomologic, and laboratory investigation confirmed a DF outbreak. Mosquito indices were far above safe thresholds, indicating inadequate vector control. We recommended improved vector surveillance and control programs, including best practices in preserving water and disposal of open containers to reduce Aedes mosquito density.

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