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Double-stranded RNA viruses (dsRNA viruses) are a polyphyletic group of viruses that have double-stranded genomes made of ribonucleic acid.The double-stranded genome is used as a template by the viral RNA-dependent RNA polymerase (RdRp) to transcribe a positive-strand RNA functioning as messenger RNA (mRNA) for the host cell's ribosomes, which translate it into viral proteins.
Double-stranded RNA (dsRNA) is RNA with two complementary strands found in cells. It is similar to DNA but with the replacement of thymine by uracil and the adding of one oxygen atom. [ 1 ] Despite the structural similarities, much less is known about dsRNA.
Sedoreoviridae (formerly Reoviridae) is a family of double-stranded RNA viruses. Member viruses have a wide host range, including vertebrates , invertebrates , plants, protists and fungi. [ 1 ] They lack lipid envelopes and package their segmented genome within multi-layered capsids .
The genome can be single-stranded RNA or double-stranded . [2] Notable human diseases caused by RNA viruses include influenza , SARS , MERS , COVID-19 , Dengue virus , hepatitis C , hepatitis E , West Nile fever , Ebola virus disease , rabies , polio , mumps , and measles .
Nov. 26—Santa Fe veterinarians are keeping track of a mysterious canine respiratory virus that has weaved through several states, including Colorado, and taken the lives of some dogs along the way.
The eleven dsRNA strands remain within the protection of the two protein shells and the viral RNA-dependent RNA polymerase creates mRNA transcripts of the double-stranded viral genome. By remaining in the core, the viral RNA evades innate host immune responses including RNA interference that are triggered by the presence of double-stranded RNA.
"Avoid high-traffic dog including boarding, doggy day cares, dog parks, grooming or training classes," says Ganzer. Dogs should also stay up to date with their vaccines for other illnesses, the ...
The adenovirus genome is linear, non-segmented double-stranded (ds) DNA that is between 26 and 48 kbp. [2] This allows the virus to theoretically carry 22 to 40 genes . Although this is significantly larger than other viruses in its Baltimore group , it is still a very simple virus and is heavily reliant on the host cell for survival and ...