Japanese encephalitis(JE)was first discovered in Japan in 1871;in 1924,a major outbreak occurred,with 6,000 JE cases reported and a mortality rate of approximately 60%[1,2].Later studies showed that JE is caused by th...Japanese encephalitis(JE)was first discovered in Japan in 1871;in 1924,a major outbreak occurred,with 6,000 JE cases reported and a mortality rate of approximately 60%[1,2].Later studies showed that JE is caused by the Japanese encephalitis virus(JEV),which is spread by mosquitoes.展开更多
Objective High PM2.5 concentration is the main feature of increasing haze in developing states,but information on its microbial composition remains very limited.This study aimed to determine the composition of microbi...Objective High PM2.5 concentration is the main feature of increasing haze in developing states,but information on its microbial composition remains very limited.This study aimed to determine the composition of microbiota in PM2.5 in Guangzhou,a city located in the tropics in China.Methods In Guangzhou,from March 5th to 10th,2016,PM2.5 was collected in middle volume air samplers for 23 h daily.The 16 S rDNA V4 region of the PM2.5 sample extracted DNA was investigated using high-throughput sequence.Results Among the Guangzhou samples,Proteobacteria,Bacteroidetes,Firmicutes,Cyanobacteria,and Actinobacteria were the dominant microbiota accounting for more than 90%of the total microbiota,and Stenotrophomonas was the dominant gram-negative bacteria,accounting for 21.30%–23.57%.We examined the difference in bacterial distribution of PM2.5 between Beijing and Guangzhou at the genus level;Stenotrophomonas was found in both studies,but Escherichia was only detected in Guangzhou.Conclusion In conclusion,the diversity and specificity of microbial components in Guangzhou PM2.5 were studied,which may provide a basis for future pathogenicity research in the tropics.展开更多
基金supported by grants from the National Key Research and Development Program[2016YFD0500401](WH)the Development Grant of State Key Laboratory of Infectious Disease Prevention and Control[2014SKLID103](LG)and[2015SKLID505](WH)。
文摘Japanese encephalitis(JE)was first discovered in Japan in 1871;in 1924,a major outbreak occurred,with 6,000 JE cases reported and a mortality rate of approximately 60%[1,2].Later studies showed that JE is caused by the Japanese encephalitis virus(JEV),which is spread by mosquitoes.
基金supported in part by the Major Research Plan of the National Natural Science Foundation of China[91543132]National Natural Science Foundation of China[81541070,30901249,81101267,and 81630025]+3 种基金Natural Science Foundation of Guangdong[10151063201000036,S2011010002526,and 2016A030313089]Guangdong Province Medical Research Foundation[A2015310]Project from Jinan university[21612426,21615426,JNUPHPM2016001,and JNUPHPM2016002]Traditional Chinese Medicine Bureau of Guangdong Province[20181071]。
文摘Objective High PM2.5 concentration is the main feature of increasing haze in developing states,but information on its microbial composition remains very limited.This study aimed to determine the composition of microbiota in PM2.5 in Guangzhou,a city located in the tropics in China.Methods In Guangzhou,from March 5th to 10th,2016,PM2.5 was collected in middle volume air samplers for 23 h daily.The 16 S rDNA V4 region of the PM2.5 sample extracted DNA was investigated using high-throughput sequence.Results Among the Guangzhou samples,Proteobacteria,Bacteroidetes,Firmicutes,Cyanobacteria,and Actinobacteria were the dominant microbiota accounting for more than 90%of the total microbiota,and Stenotrophomonas was the dominant gram-negative bacteria,accounting for 21.30%–23.57%.We examined the difference in bacterial distribution of PM2.5 between Beijing and Guangzhou at the genus level;Stenotrophomonas was found in both studies,but Escherichia was only detected in Guangzhou.Conclusion In conclusion,the diversity and specificity of microbial components in Guangzhou PM2.5 were studied,which may provide a basis for future pathogenicity research in the tropics.
