<span style="font-size: 20.0pt;mso-bidi-font-size:14.0pt;font-family:"Times New Roman","serif"">Transmission efficiency of <i>Culex quinquefasciatus </i>and <i>Aedes aegypti </i>to <i>Wuchereria bancrofti </i>infection : An experimental study* </span>

Abstract

98-100<span style="font-size: 14.5pt;mso-bidi-font-size:8.5pt;font-family:" times="" new="" roman","serif""="">Present study was undertaken to evaluate the suitability of natural (Culex quinquefascialus) and experimental (Aedes aegypti) vectors for supporting the development of W. bancrofti larvae for onward transmission. Both the species permitted development of W. bancrofti mf to infective larvae (L3) within 11 to 13 days. The mf intake by both the species of mosquitoes was directly related to mf density in donor's blood. Culex exhibited higher <span style="font-size:14.5pt;mso-bidi-font-size: 8.5pt;font-family:" arial","sans-serif""="">L3 recovery than Aedes. In Aedes maximum percent L1 development occurred after ingesting 4 mf whereas Culex exhibited best establishment at an average mf intake of 11.5. Nevertheless wide variation in mf density in donor' s blood did not significantly affect the larval establishment in Aedes mosquito while in Culex very high (>400 mf / 40µl) or low ( 40 µl) mf counts in donor's blood adversely affected <span style="font-size: 14.5pt;mso-bidi-font-size:8.5pt;font-family:" times="" new="" roman","serif""="">the L3, recovery. The results reveals that A. aegrpti has an edge over the natural vector, Culex in being a voracious feeder, their easy laboratory maintenance and better transmission potential.<span style="font-size: 17.0pt;mso-bidi-font-size:11.0pt"> </span