Poxviridae

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Poxviridae is a family of viruses known for causing diseases in both humans and animals. The family is divided into two subfamilies: Chordopoxvirinae, which infect vertebrates, and Entomopoxvirinae, which infect insects.

Taxonomy[edit | edit source]

The Poxviridae family is divided into two subfamilies: Chordopoxvirinae and Entomopoxvirinae. The Chordopoxvirinae subfamily is further divided into 18 genera, including Orthopoxvirus, Avipoxvirus, and Molluscipoxvirus. The Entomopoxvirinae subfamily is divided into three genera: Alphaentomopoxvirus, Betaentomopoxvirus, and Gammaentomopoxvirus.

Structure[edit | edit source]

Poxviruses are large, complex viruses with a unique brick or oval shape. They have a linear, double-stranded DNA genome, which is enclosed in a core surrounded by multiple layers of lipoprotein. The outermost layer is a membrane envelope derived from the host cell.

Replication[edit | edit source]

Poxviruses replicate in the cytoplasm of the host cell, a unique characteristic among DNA viruses. The replication process involves several stages, including entry, uncoating, early gene expression, DNA replication, late gene expression, assembly, and release.

Diseases[edit | edit source]

Poxviruses are responsible for several diseases in humans and animals. The most well-known is smallpox, caused by the variola virus, a member of the Orthopoxvirus genus. Other diseases caused by poxviruses include cowpox, monkeypox, and molluscum contagiosum.

Prevention and Treatment[edit | edit source]

Vaccination is the primary method of prevention for poxvirus diseases. The smallpox vaccine was the first vaccine ever developed and led to the eradication of smallpox. Treatment for poxvirus infections is primarily supportive, as there are currently no specific antiviral drugs for these viruses.

See Also[edit | edit source]

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