Impact of Climatic Factors on the Temporal Trend of Malaria in India from 1961 to 2021.

Malaria remains a significant public health problem in India. Although temperature influences Anopheline mosquito feeding intervals, population density, and longevity, the reproductive potential of the Plasmodium parasite and rainfall influence the availability of larval habitats, and evidence to correlate the impact of climatic factors on the incidence of malaria is sparse. Understanding the influence of climatic factors on malaria transmission will help us predict the future spread and intensification of the disease.

Biodegradation of Organophosphorus Insecticides by Bacillus Species Isolated From Soil.

This study investigates the biodegradation of methyl parathion, an organophosphate pesticide used in paddy fields. Microbial degradation transforms toxic pesticides into less harmful compounds, influenced by the microbial community in the soil. To isolate different microbial colonies, soil samples from an organophosphorus-treated groundnut field were plated on nutrient agar and MSM with 1% glucose and 0.

Innovative sterile male release strategies for Aedes mosquito control: progress and challenges in integrating evidence of mosquito population suppression with epidemiological impact.

Background: Aedes mosquitoes pose a significant global threat as vectors for several debilitating arboviruses, including dengue, Zika, yellow fever, and chikungunya. Their unique breeding habits, behavior, and daytime activity complicate control efforts, prompting the search for innovative solutions. The sterile insect technique (SIT) and incompatible insect technique (IIT) are promising new techniques under investigation.

Ties that bind: understanding One Health networks and participation for zoonoses prevention and control in India.

Background: Cross-sectoral collaborations as exemplified by the One Health approach, are widely endorsed as pragmatic avenues for addressing zoonotic diseases, but operationalisation remain limited in low-and-middle income countries (LMICs). Complexities and competing interests and agendas of key stakeholders and the underlying politico-administrative context can all shape outcomes of collaborative arrangements. Evidence is building that organised collaborations are complex political initiatives where different objectives; individual and institutional agendas need to be reconciled to incentivise collaborations.

Factors influencing participation of elderly population in mass drug administration for lymphatic filariasis: a cross-sectional study.

Background: The success of mass drug administration (MDA) for lymphatic filariasis (LF) elimination relies on achieving a participation rate of at least 65% within the endemic community. However, participation of sub-population in the community varies and a significant treatment gap among the elderly population, remains to be addressed. The present study explores the factors influencing the elderly participation in MDA and propose possible solutions to bridge the gap.

Nationwide cross-sectional surveillance of Leishmania donovani in phlebotomine sand flies and its impact on national kala-azar elimination in India.

India is accelerating efforts to eliminate kala-azar by aligning its National Kala-Azar Elimination Program with the World Health Organization's (WHO) roadmap for Neglected Tropical Diseases (NTDs) 2021-2030. Elimination relies on comprehensive vector surveillance and integrated vector management. This study aimed to conduct nationwide entomological surveillance to detect Leishmania donovani in phlebotomine sand flies.

Exploring potential application of anti-dengue NS1 human polyclonal antibodies for detection of dengue virus infection.

Dengue, a vector-borne disease, affects nearly 400 million people annually. Although commercially available dengue NS1 antigen-based ELISA kits are simple and rapid, they are expensive as monoclonal antibodies are used in these tests, and also, they have short expiry dates. As an alternative, the polyclonal antibodies generated against dengue NS1 antigen from the individuals who recovered from the dengue infection (human polyclonal antibodies against dengue; HuPA-D) can be explored for the detection of NS1 antigen in the dengue virus (DENV) infected patients' sera.

Accessing medical care in the era of the digital revolution: arguing the case for the "".

This article explores the intersection of healthcare accessibility and digitalisation from a rights perspective. Drawing from two illustrative cases presented to a filariasis management clinic in Puducherry, where the authors are affiliated, the article argues that despite the multiple benefits that digital health poses, there are individuals and sections of society that experience marginalisation in healthcare owing to digitalisation. Collating the data generated through the observations of the authors and the narratives of the patients, the article illustrates that such marginalisation can originate even from a relatively simple ICT adaptation like text message-based appointments, inducing health inequities.

Rising case-fatality rate of kala-azar (visceral leishmaniasis) in India: An unexpected challenge to the kala-azar elimination program?

The target of kala-azar elimination was initially set in 2010 and was later extended several times to finally be fixed in 2020, which also passed without success. However, in 2022, India had come very close to complete elimination by achieving a 98.7% decline in kala-azar cases.

Genome resequencing and genome-wide polymorphisms in mosquito vectors Aedes aegypti and Aedes albopictus from south India.

Aedes aegypti and Aedes albopictus mosquitoes spread major vector-borne viral diseases in tropical and sub-tropical regions of the globe. In this study, we sequenced the genome of Indian Ae. aegypti and Ae.

Molecular characterization of anopheline species diversity in the Andaman and Nicobar archipelago, with a particular emphasis on Anopheles barbirostris.

This study investigates anopheline species diversity in the Andaman and Nicobar Islands, employing morphological and molecular methods, focusing on the D3 domain of 28S rRNA (D3) and second internal spacer (ITS2). Ten Anopheline species were identified morphologically and confirmed with molecular markers. While the D3 region demonstrated low level of inter- and intra-specific genetic distance in all the species, ITS2 revealed clear barcoding gap.

Report of a new species of sand fly, Phlebotomus (Anaphlebotomus) ajithii n. sp. (Diptera: Psychodidae), from Western Ghats, India.

Background: Western Ghats is a biodiversity treasure trove with reports of indigenous leishmaniasis cases. Hence, systematic sand fly surveillance was carried out among the tribal population. The present study reports a novel sand fly species, Phlebotomus (Anaphlebotomus) ajithii n.

Serotype-specific clinical features and spatial distribution of dengue in northern Kerala, India.

Background: Collection and compilation of spatial, meteorological, entomological, and virological data are critical in mitigating climate-sensitive emerging infections like dengue. This study was a holistic attempt to understand the dengue situation in the Kasaragod district of Kerala, India.

Methods: This cross-sectional study was conducted in 13 health institutions from June to July 2021.

Mating of unfed, engorged, and partially to fully gravid Aedes aegypti (Diptera: Culicidae) female mosquitoes in producing viable eggs.

Background: Understanding the relationship between blood-feeding and mating is important in effectively managing the most well-adapted vector insect, Aedes aegypti (Linnaeus). Although extensive studies have investigated the behavioural aspects of Aedes such as blood-feeding, mating, and their relationship, several knowledge gaps still exist. Therefore, the present study was undertaken to determine the possibility of successful mating by unfed, engorged, and partially to fully gravid (up to 5 days after blood-feeding with fully developed eggs) female Ae.

Mosquito prevalence, resting habitat preference, and Plasmodium infection status of anophelines in coastal Karnataka during the declining phase of malaria-an exploratory study.

Malaria has a historical presence in the Dakshina Kannada (D.K.) and Udupi districts of Karnataka, India.

Commercial Enzyme-Linked Immunosorbent Assay Kit Is Useful for Detection of Recombinant and Secretory Nonstructural-1 Protein Antigen of Dengue Virus.

Dengue is a mosquito-borne tropical disease, caused by the Dengue virus (DENV). It has become a severe problem and is a rising threat to public health. In this study, we have evaluated commercial Merilisa i Dengue NS1 Antigen kit (Meril LifeSciences India Pvt.

Advancing Equity in Health Care Among Dalits and Tribal People in India: The Progress, Current Realities, and the Way Forward.

The caste system and resulting social exclusion are important social determinants of health inequity in India. This article critically analyzes the influence of the caste system on health inequity in India, starting with a historical perspective and moving to the current status. The article argues that the caste system has deprived Dalits and tribal people in India of achieving health equity.

Molecular Identification of Host Blood Meal from Phlebotomine Sandflies (Diptera: Psychodidae) from Kerala, India.

Female phlebotomine sandflies serve as vectors for the transmission of Leishmania parasites, perpetuating an enzootic cycle by disseminating between sylvatic and domestic animals. Humans form a part of this cycle because the sandflies search for a blood source required for egg development. The present study aimed to identify the feeding preferences of different sandfly fauna from six districts of Kerala, India, using molecular tools.