title: Impact of weather variables on mosquitoes infected with Japanese encephalitis virus in Kurnool district, Andhra Pradesh.
abstract: OBJECTIVE
  To assess the virus infection in mosquitoes during different seasons and correlated with various climatic factors.
  
  
  METHODS
  The field collected vectors were screened for Japanese encephalitis (JE) virus after dessication using ELISA method. Most of the positive pools were recorded from Culex tritaeniorhynchus (Cx. tritaeniorhynchus) and Culex. gelidus (Cx. gelidus) during JE transmission season (winter) and some positive pools were also reported during non JE transmission periods (i.e. summer and rainy seasons).
  
  
  RESULTS
  The minimum infection rates (MIR) of 1.75 from Cx. tritaeniorhynchus and 0.17 from Cx. gelidus has been reported in the year 2002 at the beginning of the study and the values were found nil at the end of the study (2006) from the study areas of Kurnool district.
  
  
  CONCLUSIONS
  From this study it is noted that MIR of Cx. gelidus and Cx. tritaeniorhynchus were modulated by various meteorological parameters. The mosquito vector abundance increases after the monsoon period (winter) and lowest in dry season (summer). Similarly, MIR fluctuated between seasons with higher MIR recorded after monsoon period and lower in the rest of season. Impact of these metrological parameters in JE virus infected mosquitoes is discussed in this paper.
authors.affiliation: Bioinformatics Group, Biology Division, Indian Institute of Chemical Technology (CSIR), Hyderabad, Andhra Pradesh, India. murty_usn@yahoo.com
authors.forename: Suryanarayana Murty
authors.initials: SM
authors.lastname: Upadhyayula
authors.forename: Srinivasa
authors.initials: S
authors.lastname: Rao Mutheneni
authors.forename: Hari Krishna
authors.initials: HK
authors.lastname: Nayanoori
authors.forename: Arunachalam
authors.initials: A
authors.lastname: Natarajan
authors.forename: Prashant
authors.initials: P
authors.lastname: Goswami
mesh_terms: D000818:Animals; D003465:Culex / Q000821:virology*; D004664:Encephalitis Virus, Japanese / Q000302:isolation & purification*; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D007194:India; D007303:Insect Vectors; D012621:Seasons; D013048:Specimen Handling; D014887:Weather