Summary What is already known about this topic?An increasing number of human infected avian influenza A(H9N2)cases have been reported.In 2021,11 human infections with influenza A virus subtype H9N2(A/H9N2)have been re...Summary What is already known about this topic?An increasing number of human infected avian influenza A(H9N2)cases have been reported.In 2021,11 human infections with influenza A virus subtype H9N2(A/H9N2)have been reported in China.What is added by this report?A new case of H9N2 that occurred in April 2021 in Huizhou City,Guangdong Province,China,was reported in this study.Epidemiological and laboratory information of the case and routine influenza surveillance data of avian influenza A were presented in this report.What are the implications for public health practice?The emergence of a human infected with Avian Influenza Virus H9N2 demonstrates that there is an urgent need to strengthen the surveillance of influenza-like illness and live poultry market.展开更多
Dear Editor,Hand,foot,and mouth disease(HFMD)is a common illness among children that is usually mild and self-limiting.However,in some severe cases,patients may rapidly develop neurological and systemic complications ...Dear Editor,Hand,foot,and mouth disease(HFMD)is a common illness among children that is usually mild and self-limiting.However,in some severe cases,patients may rapidly develop neurological and systemic complications that can be fatal(Ooi et al.,2010).HFMD is caused by a few serotypes of human enterovirus A(HEV-A)species(Yu and Cowling,2019),with enterovirus A71(EV-A71)and coxsackievirus A16(CV-A16)being the most typical causative agents(Yu and Cowling,2019).Furthermore,severe neurological sequelae are more common in cases with EV-A71 serotype infection than other serotypes(Ooi et al.,2010;Yu and Cowling,2019).There has been a significant increase in EV-A71 epidemic activity throughout the Asia–Pacific region(McMinn,2002)since EV-A71 was first isolated from a patient with central nervous system(CNS)disease in 1969(Schmidt et al.,1974).EV-A71 is a small non-enveloped virus belonging to HEV-A species of the genus Enterovirus in the family Picornaviridae(Nasri et al.,2007).Its genome is a single-stranded positive-sense RNA of approximately 7400 bp in length and contains only one complete open reading frame(ORF),which encodes a large polyprotein(Solomon et al.,2010).展开更多
文摘Summary What is already known about this topic?An increasing number of human infected avian influenza A(H9N2)cases have been reported.In 2021,11 human infections with influenza A virus subtype H9N2(A/H9N2)have been reported in China.What is added by this report?A new case of H9N2 that occurred in April 2021 in Huizhou City,Guangdong Province,China,was reported in this study.Epidemiological and laboratory information of the case and routine influenza surveillance data of avian influenza A were presented in this report.What are the implications for public health practice?The emergence of a human infected with Avian Influenza Virus H9N2 demonstrates that there is an urgent need to strengthen the surveillance of influenza-like illness and live poultry market.
文摘Dear Editor,Hand,foot,and mouth disease(HFMD)is a common illness among children that is usually mild and self-limiting.However,in some severe cases,patients may rapidly develop neurological and systemic complications that can be fatal(Ooi et al.,2010).HFMD is caused by a few serotypes of human enterovirus A(HEV-A)species(Yu and Cowling,2019),with enterovirus A71(EV-A71)and coxsackievirus A16(CV-A16)being the most typical causative agents(Yu and Cowling,2019).Furthermore,severe neurological sequelae are more common in cases with EV-A71 serotype infection than other serotypes(Ooi et al.,2010;Yu and Cowling,2019).There has been a significant increase in EV-A71 epidemic activity throughout the Asia–Pacific region(McMinn,2002)since EV-A71 was first isolated from a patient with central nervous system(CNS)disease in 1969(Schmidt et al.,1974).EV-A71 is a small non-enveloped virus belonging to HEV-A species of the genus Enterovirus in the family Picornaviridae(Nasri et al.,2007).Its genome is a single-stranded positive-sense RNA of approximately 7400 bp in length and contains only one complete open reading frame(ORF),which encodes a large polyprotein(Solomon et al.,2010).
