The paramyxovirus virus that lacks both hemagglutinin and neuraminidase activities is:
1. Influenza and mumps possess both haemagglutinin and neuraminidase spikes. 2. Measles possesses haemagglutinin but lacks neuraminidase spikes. 3. RSV lacks both haemagglutinin and neuraminidase spikes. The viral envelope contains a surface glycoprotein G, by which it is attached to the cell surface of the host cells. It contains F protein but lacks both H and N proteins. The F protein induces the fusion of the infected cells with adjoining cells, resulting in the formation of large multinucleated syncytia, from which the virus derives its name.
Mumps virus
Measles virus
Respiratory syncytial virus
Parainfluenza virus.
Virology Pa-2 (RNA Virus Pa-1,2 & Miscellaneous Viruses)