[Analysis on the characteristics of blood serum Ab-IgG detective result of severe acute respiratory syndrome patients in Guangzhou, China].

Objective: To probe blood serum Ab-IgG characteristics of severe acute respiratory syndrome (SARS) patients in Guangzhou and investigate the related factors.

Methods: The serum of such population diagnosed as SARS convalescent patients, non-SARS patients, family consanguineous contraction persons, wild animal and vegetable salesman and community common people was collected. The lab detective method of ELISA was adopted for these serum samples.

[Discoveries of avian influenza A(H9N2) virus in chickens and men infected by H9N2 virus in Guangzhou area].

Objective: To understand the epidemic status of avian influenza A virus in chickens and men in Guangzhou area and to prevent men suffering from avian influenza A (H5N1) virus.

Methods: Etiologic and serological surveys were conducted in chickens and men who were working in the poultry farms and slaughter house. Viruses were isolated with both MDCK cells and embryonated chicken eggs.