Prevalence of Severe Febrile and Thrombocytopenic Syndrome Virus, Anaplasma spp. and Babesia microti in Hard Ticks (Acari: Ixodidae) from Jiaodong Peninsula, Shandong Province.

The presence of tick-borne pathogens and their possible coinfections were evaluated among host-seeking ticks in seven cities from Jiaodong peninsula, Shandong Province, with specific PCR or reverse transcription-PCR tests. Among 2107 ticks collected, four species of three genera were identified with Haemaphysalis longicornis as predominant species, and total of 63 H. longicornis and 10 Rhicephalus microplus were confirmed infected with tick-borne pathogens.

Comparison of pyrethroid resistance in adults and larvae of Culex pipiens pallens (Diptera: Culicidae) from four field populations in China.

The susceptibility of adults and larvae from four field populations of Culex pipiens pallens (Coguillett) (Diptera: Culicidae) in China to deltamethrin, beta-cypermethrin, and permethrin was investigated using the World Health Organization standard susceptibility test methods. One to 2 d old nonblood fed female mosquitoes emerged from pupae resulting from wild-caught larvae (F1 laboratory reared adults) were exposed to various doses of the pyrethroids. The larval bioassay was conducted using a range of concentrations to determine the LC50 values.