How many pox viruses are there?

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Poxviridae is a family of viruses. Vertebrates, and arthropods serve as natural hosts. There are currently 83 species in this family, divided among 22 genera, which are divided into two subfamilies.

What are all the pox diseases?

Poxviruses (members of the Poxviridae family) can infect both humans and animals. The orthopoxviruses include smallpox (variola), monkeypox, vaccinia, cowpox, buffalopox, cantagalo, and aracatuba viruses.

What diseases are related to smallpox?

Smallpox is caused by variola virus, genus Orthopoxvirus. Other members of this genus that can infect humans are vaccinia virus, monkeypox virus, and cowpox virus. In 1980, the World Health Organization officially declared the worldwide eradication of smallpox.

Is poxvirus DNA infectious?

Infecting virions are partly uncoated by cellular enzymes and then fully uncoated by viral enzymes released from the virion core. The viral DNA is not infectious per se, and other core enzymes (including a DNA-dependent RNA polymerase) play essential roles in the replication cycle.

Which of the following forms of pox virus actually exist?

While some poxviruses, such as smallpox (variola virus), no longer exist in nature, other poxviruses can still cause disease. These include monkeypox virus, orf virus, molluscum contagiosum, and others.

What is the monkey pox?

Monkeypox is a rare viral illness that does not usually cause serious illness, but can result in hospitalization or death. Monkeypox typically begins with a flu-like illness and swelling of the lymph nodes and progresses to a rash on the face and body. Most infections last two to four weeks.

What is hemorrhagic smallpox?

Hemorrhagic smallpox is a severe form accompanied by extensive bleeding into the skin, mucous membranes, gastrointestinal tract, and viscera. This form develops in approximately two percent of infections and occurs mostly in adults. Pustules do not typically form in hemorrhagic smallpox.

What is the simplest virus?

Introduction. Members of the virus family Narnaviridae are the simplest of known RNA viruses, consisting of a single molecule of positive-sense RNA that may be as small as 2.3 kb and encoding only an RNA-dependent RNA polymerase (RdRp) to direct their own replication.