The circulation of the highly pathogenic avian influenzavirus (HPAI) H5N1 has intensified globally since 2021 with mass mortality in wild birds and poultry and incidental infections in mammals such as cattle. The virus is a subtype of the influenza A virus belonging to the family Orthomyxoviridae which consists of ...
Measles virus, a human pathogen, is in the genus Morbillivirus. It is an enveloped, single-stranded, non-segmented, negative-sense RNA virus. Its virions are pleomorphic (roughly spherical) in shape with a diameter of 300–500 nm. Parainfluenza and mumps viruses are within the genus ...
Papillomaviruses are double-stranded DNA viruses with a particle diameter of about 55 nanometers (nm). They can infect the skin as well as the epithelium in all vertebrates including humans ...