Analysis of entomological indices for transmission of Japanese encephalitis in Malkangiri district, Odisha State, east central India during 2015-2019.

There have been repeated episodes of the outbreak of Japanese encephalitis (JE) in Malkangiri district of Odisha State in the recent past. In the current study, we aimed to assess the entomological parameters of JE vectors in the district. Prevalence of JE vector species, their per man hour density (PMHD), dusk index (DI), human blood index (HBI), infection status and other factors responsible for transmission of JE were assessed over 5 years (2015-2019).

Current status of malaria elimination in Koraput district of Odisha, India.

Background & Objectives: After launching of NFME and NSP with wide scale implementation of effective intervention tools during 2017, Odisha State of India observed a drastic reduction of malaria cases (81%) in 2018 and 88.6% in 2019, compared to 2017. The current study analysed the different factors causative for malaria reduction in Koraput district of Odisha State, India.

Efficacy evaluation of Veeralin LN, a PBO-incorporated alpha-cypermethrin long-lasting insecticidal net against Anopheles culicifacies in experimental huts in Odisha State.

Background: The success of malaria control using long-lasting insecticidal nets (LLINs) is threatened by pyrethroid resistance developed by the malaria vectors, worldwide. To combat the resistance, synergist piperonyl butoxide (PBO) incorporated LLINs is one of the available options. In the current phase II hut trial, the efficacy of VeeralinLN (an alpha-cypermethrin and PBO-incorporated net) was evaluated against Anopheles culicifacies, a pyrethroid resistant malaria vector.

Evaluation of bio-efficacy and durability of long-lasting insecticidal nets distributed by malaria elimination programme in Eastern India.

Background: Long-lasting insecticidal nets (LLINs) are the most favoured vector control tools worldwide. Timely monitoring and evaluation of LLINs is important to sustain the impact of this promising vector control method and for replacement of worn-out and those rendered ineffective. During the mid-2017, LLINs were distributed by the National Vector Borne Disease Control Programme (NVBDCP) in high malaria endemic districts of the eastern coastal state of Odisha.

Intensity of pyrethroid resistance in . (Diptera: Culicidae) in Odisha State, India.

. is the principal malaria vector in India and has recently developed resistance to synthetic pyrethroids. For identifying the possible operational impact, quantitative measure of the intensity of this resistance is required.

Entomological factors in relation to the occurrence of Japanese encephalitis in Malkangiri district, Odisha State, India.

Japanese encephalitis is a mosquito-borne arbo-viral disease with seasonal occurrence. Since 2009, AES/JE cases have been reported from Malkangiri district of Odisha State, India at an interval of one year.In the current study, the entomological parameters of known JE vector mosquito species were assessed for one year in Malkangiri district.

Entomological investigation of Japanese encephalitis outbreak in Malkangiri district of Odisha state, India.

Background: A severe outbreak of Japanese encephalitis (JE) and acute encephalitis syndrome (AES) with high case fatality was reported from Malkangiri district of Odisha state, India during September to November 2016 affecting 336 children with 103 deaths.

Objectives: The purpose of this study was to investigate the outbreak in the light of entomological determinants.

Methods: Entomological investigation was carried out in 48 villages from four mostly affected Community Health Centres (CHCs) of Malkangiri district.