Qingzhu Gao Kai Wang Ke Chen Li Liang Yaqiu Zheng Yunzhi Zhang Jin Xiang Ni Tang

U Protzer M Nassal P W Chiang M Kirschfink H Schaller

rosa cristina coppola department of public health, clinical and molecular medicine, university of cagliari, italy +39-706753104, coppola@medicina. unica.it; department of public health, clinical and molecular medicine, university of cagliari, italy +39-706753104, coppola@medicina. unica.it rosa cristina coppola department of public health, clinical and molecular medicine, university of cagliari, italy +39-706753104, [email protected]; department of public health, clinical and molecular medicine, university of cagliari, italy +39-706753104, [email protected] angelo meloni department of public health, clinical and molecular medicine, university of cagliari, italy +39-706753104, coppola@medicina. unica.it marcello campagna department of public health, clinical and molecular medicine, university of cagliari, italy +39-706753104, coppola@medicina. unica.it

afshin hooshyar department of gastroenterology, imam khomeini hospital, ardabil university of medical sciences, ardabil, ir iran shahram habibzadeh department of infectious disease, imam khomeini hospital, ardabil university of medical sciences, ardabil, ir iran; department of infectious disease, imam khomeini hospital, ardabil university of medical sciences, ardabil, ir iran. tel: +98-9144519670, fax: +98-4515510057 nasrin ghasemi department of internal medicine, imam khomeini hospital, ardabil university of medical sciences, ardabil, ir iran abbas yazdanbod department of gastroenterology, imam khomeini hospital, ardabil university of medical sciences, ardabil, ir iran sirus sohrabi department of emergency medicine, shahid beheshti university of medical sciences, tehran, ir iran nasrollah maleki department of internal medicine, imam khomeini hospital, ardabil university of medical sciences, ardabil, ir iran

bo qin shaoxing centre for disease control and prevention, shaoxing, china; state key lab of virology, wuhan institute of virology, chinese academy of sciences, wuhan, china; shaoxing center for disease control and prevention, shaoxing, china. tel: +86-57588137362, fax: +86-57588137333 bo zhang state key lab of virology, wuhan institute of virology, chinese academy of sciences, wuhan, china xiaodong zhang college of life science, shaoxing university, shaoxing, china tingting he shaoxing centre for disease control and prevention, shaoxing, china wenying xu shaoxing centre for disease control and prevention, shaoxing, china lijun fu shaoxing centre for disease control and prevention, shaoxing, china