Different level examples of rabies virus during purification process were tested by ELISA and virusinfectivity titre. and the results were compared with that of results of NIH.
Conclusions the SARS virus had the characters of high infectivity and high transmitting speed. The SARS virus was most likely spread by droplet transmission.
结论SARS病毒具有传染性极高、传播速度极快等特点,传播因素最大的可能是飞沫。
3
The HA is the major surface antigen of influenza virus, which can induce the production of neutralizing antibodies to neutralize the infectivity of the virus.