HIV awareness and safe sexual behaviors among female sex workers in Kathmandu valley of Nepal.

PURPOSE: Knowledge on HIV and safe sex practices are the main determinants for the prevention and control of HIV/AIDS transmission. The aim of this study was to assess HIV awareness and safe sexual behavior among the female sex workers (FSWs) in the Kathmandu valley of Nepal. METHODS: The study was based on data secondary to Integrated Biological and Behavioral Surveillance surveys of 2093 FSWs in Kathmandu valley from 2006 to 2015. Bivariate and multivariate logistic regression models were used to identify the factors associated with knowledge and misconceptions about HIV (BCDEF) and safe sexual practices (consistent condom use with regular clients and nonpaying partners). RESULTS: FSWs who had secondary education (adjusted odds ratio [AOR]=2.08, 95% confidence interval [CI]=1.60, 2.70) and visited the drop-in center (DIC) (AOR=1.34, 95% CI=1.02, 1.75) in the last year had more knowledge and misconceptions about HIV (BCDEF). FSWs who had consistent condom use with nonpaying partners (AOR=1.60, 95% CI=1.23, 2.09), had a HIV test (AOR=1.34, 95% CI=1.02, 1.76), met peer educators (PEs) (AOR=1.49, 95% CI=1.17, 1.91) and visited the DIC in the last year (AOR=1.32, 95% CI=1.01, 1.72) had a higher chance of condom use with clients. Married FSWs (AOR=2.23, 95% CI=1.57, 3.17) and FSWs who met PEs in the last year were more likely to have condom use with nonpaying partners (AOR=1.42, 95% CI=1.04, 1.93). CONCLUSION: Knowledge and misconceptions about HIV has decreased over the years among FSWs; however, consistent condom use with regular clients and nonpaying partners has significantly increased. HIV intervention programs were strongly associated with safe sexual practices among FSWs and need to be strengthened.

Impact of mass drug administration for elimination of lymphatic filariasis in Nepal.

BACKGROUND: Lymphatic filariasis (LF) is a neglected tropical disease transmitted by mosquitoes. Nepal has implemented a national effort to eliminate LF by 2020 through mass drug administration (MDA) using diethylcarbamazine (DEC) and albendazole (ALB). We assessed the impact of MDAs on LF in selected districts of Nepal after the recommended six MDA rounds had been completed. METHODOLOGY AND PRINCIPAL FINDINGS: Baseline surveys were conducted in seven districts and mapping data were used as baseline in the other three districts before starting MDA in 2009. LF antigen (Ag) prevalence ranged from 1.06% to 20% among districts included in the baseline and mapping study. The number of people who received DEC and ALB were recorded during each MDA round and population-based cluster surveys were conducted at least once in each district during the life of the program. The reported MDA coverage in five districts was consistently at least 65%. Two districts achieved the targeted coverage in four out of five rounds and the rest three districts achieved the target only in the first round. A pre-transmission assessment survey (pre-TAS) was conducted in one sentinel site and at least one spot check site in each of the districts after five MDA rounds. In pre-TAS, all the sites of five districts (Pyuthan, Arghakhanchi, Kaski, Bhaktapur, and Kathmandu) and all but one spot check site of Lalitpur district had LF Ag < 2% (ranging from 0.0% to 1.99%). Transmission assessment survey (TAS) was conducted in six evaluation units (EUs) consisting of six districts qualified on pre-TAS. Though MDA coverage of 65% was not achieved in three districts (Kathmandu, Lalitpur and Bhaktapur), Nepal government in consultation with World Health Organization (WHO) decided to conduct TAS. All six EUs achieved the LF Ag threshold required to stop MDA in TAS, despite the low reported MDA coverage in those three districts. CONCLUSIONS: Although Nepal has achieved significant progress towards LF elimination, five rounds of MDA were not sufficient to disrupt the transmission cycle in all districts, probably because of high baseline prevalence.

Dengue virus and Japanese encephalitis virus epidemiological shifts in Nepal: a case of opposing trends.

We report on the changing epidemiology of two important flaviviruses in Nepal: Japanese encephalitis (JE) and dengue viruses. Morbidity and mortality in Nepal is in the thousands since JE was introduced in 1978. Nepal launched an extensive laboratory-based JE surveillance in 2004. Nepal experienced a remarkable reduction in disease burden after mass immunizations from 2005 to 2010, when 2,040 JE infections and 205 JE-related deaths were confirmed. With its emergence in 2006, dengue has become a significant challenge in the country, highlighted by a sudden outbreak in 2010 that resulted in 359 confirmed dengue infections. Currently, both viruses cocirculate in Nepal. Here, we document the remarkable expansion of dengue in Nepal, which urgently requires national surveillance to refine the burden and make recommendations regarding control and prevention programs. We believe that the use of existing JE surveillance network for integrated dengue surveillance may represent the most appropriate alternative.

Outbreak of pandemic influenza A/H1N1 2009 in Nepal.

BACKGROUND: The 2009 flu pandemic is a global outbreak of a new strain of H1N1 influenza virus. Pandemic influenza A (H1N1) 2009 has posed a serious public health challenge world-wide. Nepal has started Laboratory diagnosis of Pandemic influenza A/H1N1 from mid June 2009 though active screening of febrile travellers with respiratory symptoms was started from April 27, 2009. RESULTS: Out of 609 collected samples, 302 (49.6%) were Universal Influenza A positive. Among the influenza A positive samples, 172(28.3%) were positive for Pandemic influenza A/H1N1 and 130 (21.3%) were Seasonal influenza A. Most of the pandemic cases (53%) were found among young people with ≤ 20 years. Case Fatality Ratio for Pandemic influenza A/H1N1 in Nepal was 1.74%. Upon Molecular characterization, all the isolated pandemic influenza A/H1N1 2009 virus found in Nepal were antigenically and genetically related to the novel influenza A/CALIFORNIA/07/2009-LIKE (H1N1)v type. CONCLUSION: The Pandemic 2009 influenza virus found in Nepal were antigenically and genetically related to the novel A/CALIFORNIA/07/2009-LIKE (H1N1)v type.