Objective To explore the possibility of transmission from a human case of avian influenza to his close contacts.Methods Close contacts of the human case of avian influenza in Guangzhou 2006 were found out according to the definition and methods publicized by the Ministry of Health,People´s Republic of China.Epidemiological investigation and medical observation were carried out.Serum antibodies were tested in some of the close contacts.Results The avian influenza patient had never left Guangzhou in the month...

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