COVID-19 is one of seven coronaviruses that are known to infect humans. SARS-CoV-2, the virus that causes COVID-19, is genetically related to the virus that caused the 2003 SARS outbreak. There is still no definitive theory as to coronavirus disease's origins. Scientists aren't sure whe...
Although the school of thought around COVID-19 changes practically day by day, it stands to reason that herd immunity might never be the miracle solution that everyone's praying for. This is because the virus that causes COVID-19 (SARS-CoV-2) is probably like other coronaviruses and influe...
researchers from the Weill Medical College of Cornell University in New York City have identified the key mechanisms that the SARS coronavirus uses to enter and infect cells. Information on S2 protein, a key coat protein used by the virus to gain entry into human host cells; Four important ...
Current COVID-19 vaccines are based on the SARS-CoV-2 spike protein, which the virus uses to bind to and infect host cells, of the original Wuhan-hu-1. But the emerging “variants of concern”—deemed so because they appear to be more transmissible or deadlier than the wild-type SARS-...
Dendritic cells, in particular, are responsible for presenting the pathogen to the immune system to trigger the next stage of the defense.1 Adaptive Immunity Also known as acquired immunity, the adaptive immune system responds to pathogens captured by the frontline defenders. Once presented wi...
coronavirus to get into human cells. Using state-of-the-art microscopy, the team at the University of Texas at Austin showed the virus is able to bind to human cells stronger than the SARS coronavirus but also noted the spike proteins can be targeted in the creation of a vaccine or...
HEPA filters or the home-made version (Corsi-Rosenthal box) used in your home or workplace can reduce circulating viral load by 80%. This works for any respiratory virus transmitted by aerosol and this winter we have the triple threat of RSV, Influenza, and SARS-CoV-2. It also decreases...
Rarely, these coronaviruses can evolve and infect humans and then spread between humans. Recent examples of this include SARS-CoV and MERS-CoV. Coronaviruses are zoonotic, meaning they are transmitted between animals and people. The SARS-CoV-2 virus is a betacoronavirus, like MERS-CoV and SARS...
et al. Bat coronaviruses related to SARS-CoV-2 and infectious for human cells. Nature. 2022;604:330-3336. doi:10.1038/s41586-022-04532-4 6 Toxoplasmosis. Mayo Clinic. Published online. Accessed October 31, 2022. https://www.mayoclinic.org/diseases-conditions/toxoplasmosis...
Reactogenicity represents the physical manifestation of the inflammatory response to vaccination, and can include injection-site pain, redness, swelling or induration at the injection site, as well as systemic symptoms, such as fever, myalgia, or headach