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There are more than 200 different types of viruses that can cause a common cold, which is usually just a mild infection in the upper respiratory tract, hence the feeling of a sore throat, runny ...
Respiratory syncytial virus (RSV), [a] also called human respiratory syncytial virus (hRSV) and human orthopneumovirus, is a virus that causes infections of the respiratory tract. It is a negative-sense, single-stranded RNA virus. [2] Its name is derived from the large cells known as syncytia that form when infected cells fuse. [2] [3]
Five pediatric deaths were reported during the week of Dec. 21, bringing the total number to nine so far during the 2024-25 season. The CDC says levels of the COVID-19 virus being detected in ...
The Chinese Center for Disease Control and Prevention published data showing that respiratory infections had risen significantly in the week of 16 to 22 December 2024; [54] human metapneumovirus was linked to 6.2 percent of positive respiratory illness tests and 5.4 percent of respiratory-illness hospitalizations in China, more than COVID-19 ...
The incubation period of the virus can be three to six days, according to the CDC, and the groups at highest risk include younger children and adults 65 or older.
The respiratory syncytial virus , on the other hand, is contracted by direct contact and airborne droplets. It then replicates in the nose and throat before spreading to the lower respiratory tract. [48] RSV does cause epithelium damage. [48] Human parainfluenza virus typically results in inflammation of the nose, throat, and bronchi. [49]
Hantaan virus infection and NP and GP protein expression have shown to promote production of microRNAs that reduce expression of pro-inflammatory cytokines. Furthermore, hantaviruses appear to induce cell stress via endoplasmic reticulum stress while inhibiting the cellular response to stress , which helps the virus escape host stress signaling.
Overall respiratory illness activity -- including flu, COVID-19 and RSV -- continues to be listed as "high" nationwide and is causing people to seek health care "at a high level," according to the ...
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