RESUMO
South Texas has experienced local transmission of Zika virus and of other mosquito-borne viruses such as chikungunya virus and dengue virus in the last decades. Using a mosquito surveillance program in the Lower Rio Grande Valley (LRGV) and San Antonio, TX, from 2016 to 2018, we detected the presence of an insect-specific virus, cell fusing agent virus (CFAV), in the Aedes aegypti mosquito population. We tested 6,326 females and 1,249 males from the LRGV and 659 females from San Antonio for CFAV by RT-PCR using specific primers. Infection rates varied from 0 to 261 per 1,000 mosquitoes in the LRGV and 115 to 208 per 1,000 in San Antonio depending on the month of collection. Infection rates per 1,000 individuals appeared higher in females collected from BG Sentinel 2 traps compared to Autocidal Gravid Ovitraps, but the ratio of the percentage of infected pools did not differ by trap type. The natural viral load in individual males ranged from 1.25 x 102 to 5.50 x 106 RNA copies and in unfed females from 5.42 x 103 to 8.70 x 106 RNA copies. Gravid females were found to harbor fewer viral particles than males and unfed females.
Assuntos
Aedes/virologia , Flavivirus/genética , Animais , Feminino , Vírus de Insetos/genética , Masculino , Mosquitos Vetores/genética , RNA Viral/genética , Texas , Carga Viral/genéticaRESUMO
Serratia marcescens is an opportunistic pathogen that typically infects the respiratory and urinary tract, with the majority of cases being hospital acquired. The study of S. marcescens phages may help control drug-resistant S. marcescens strains. In this study, we announce the complete genome sequence and the features of S. marcescens siphophage Scapp.
RESUMO
Serratia marcescens is an opportunistic human pathogen that is known to cause hospital-acquired respiratory and urinary tract infections. Here, we announce the complete genome sequence and the features of S. marcescens phage Serbin.