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A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. [1] Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea.
The virus can spread to different organs throughout the chicken. [131] The virus is transmitted by aerosol and food contaminated by feces. Different vaccines against IBV exist and have helped to limit the spread of the virus and its variants. [127] Infectious bronchitis virus is one of a number of strains of the species Avian coronavirus. [133]
Virus infections start when viral particles bind to host surface cellular receptors. [158] Protein modeling experiments on the spike protein of the virus soon suggested that SARS‑CoV‑2 has sufficient affinity to the receptor angiotensin converting enzyme 2 (ACE2) on human cells to use them as a mechanism of cell entry. [159]
Also sometimes called the Norwalk virus or winter vomiting bug, norovirus is an extremely contagious virus. It is a common cause of illness outbreaks on cruise ships, where more than 90% of ...
The CDC also says there are no known cases outside of Rwanda, and the risk of infection with this virus in the U.S. is low. Marburg is spread through contact with Egyptian rousette bats, or by ...
Hepatitis C virus: Hepatitis C: Blood testing for antibodies or viral RNA: Antivirals (sofosbuvir, simeprevir, others) Under research [17] Hepatitis D Virus: Hepatitis D: Immunoglobulin G Antivirals, pegylated interferon alpha No Hepatitis E virus: Hepatitis E: Hepatitis E virus (HEV) Rest, ribavirin (if chronic) Yes: Herpes simplex virus 1 and ...
This is a list of all virus species, including satellites and viroids. Excluded are other ranks, and other non-cellular life such as prions. Also excluded are common names and obsolete names for viruses. The taxonomy is taken from ICTV taxonomy 2022 release [1] For a list of virus families and subfamilies, see List of virus families and ...
Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2.The disease spread worldwide, resulting in the COVID-19 pandemic.. The symptoms of COVID‑19 can vary but often include fever, [7] fatigue, cough, breathing difficulties, loss of smell, and loss of taste.