ABSTRACT
Objective To understand the resistance of Anopheles vectors to pyrethroid after several years mosquito control with the impregnated bed net method. Methods The resistant level was measured by the tentative diagnostic dose and degree method of China combined with the standard methods of WHO. Results In the area after more than 5 years mosquito control with the impregnated bed net method, An.sinensis had initial resistance to deltamethrin and permethrin. However, An.anthropophagus did not be captured. In the area after less than 5 years mosquito control with the impregnated bed net method, both An. sinensis and An.anthropophagus were susceptive to deltamethrin and permethrin. Conclusion In this research, no resistance of An.anthropophagus to deltamethrin and permethrin has been found. An.sinensis has initial resistance to them. So we must pay more attention to monitor the resistance in future malaria control programs.
ABSTRACT
This paper reports an improved McAb-ELISA test in detecting blood stage P.vivax antigen in which the plates were coated with rabbit anti-P.cynomolgi poly-antibody and two monoclonal antibodies were used together for reaction. The coincidence rate with microscopically conformed P.vivax blood samples was 94.3% and the coincidence rate with microscopically negative blood samples was 96.1%. The sensitivity was over 1 parasite/106 erythrocytes.