Deltacoronavirus
Deltacoronavirus is a genus of coronaviruses in the subfamily Orthocoronavirinae, family Coronaviridae, order Nidovirales. Coronaviruses are enveloped, positive-sense, single-stranded RNA viruses. The deltacoronaviruses are one of the four genera of coronaviruses, the others being Alphacoronavirus, Betacoronavirus, and Gammacoronavirus.
Structure[edit | edit source]
Deltacoronaviruses, like other coronaviruses, have a characteristic crown-like appearance due to the presence of spike glycoproteins on their surface. These viruses have a lipid bilayer envelope, a nucleocapsid composed of nucleoprotein, and a large genome of approximately 26 to 32 kilobases.
Genome[edit | edit source]
The genome of deltacoronaviruses is a single-stranded, positive-sense RNA. It encodes several structural proteins, including the spike (S), envelope (E), membrane (M), and nucleocapsid (N) proteins, as well as several non-structural proteins involved in viral replication and transcription.
Host Range[edit | edit source]
Deltacoronaviruses primarily infect birds and some mammals. They have been identified in various avian species and have also been found in pigs. The ability of deltacoronaviruses to cross species barriers and infect different hosts is a subject of ongoing research.
Pathogenesis[edit | edit source]
Infection with deltacoronaviruses can lead to respiratory and gastrointestinal symptoms in their hosts. The severity of the disease can vary depending on the host species and the specific virus strain. In pigs, deltacoronaviruses can cause diarrhea and vomiting, leading to significant economic losses in the swine industry.
Epidemiology[edit | edit source]
Deltacoronaviruses have a wide geographic distribution and have been detected in Asia, Europe, and North America. The transmission dynamics of these viruses are not fully understood, but they are believed to spread through direct contact and possibly through the air.
Research[edit | edit source]
Research on deltacoronaviruses is focused on understanding their molecular biology, host interactions, and potential for zoonotic transmission. Studies are also being conducted to develop vaccines and antiviral therapies to control infections in animals.
Related pages[edit | edit source]
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Contributors: Prab R. Tumpati, MD
