Tag: contagious
USA: Coronavirus vaccine breakthrough infections are potentially contagious
Researchers reported that among 20 fully-vaccinated healthcare workers with vaccine breakthrough COVID-19 cases, all were infected with coronavirus variants. More...
Older people are more contagious for coronavirus
Older people are more contagious
Denmark’s SSI study shows that no matter how much virus the first infected person in a household had, the older the first infected person was, the more other household members became infected with SARS-CoV-2. More...
Denmark’s SSI: Even people with a very low amount of coronavirus are able to infect other household members
Impossible to set minimum limit for risk of infection
Based on laboratory studies, where Ct values are compared with the ability to grow viruses in cell cultures, several researchers have proposed a “cut-off” or a minimum limit of the Ct value of 30 for infectiousness. More...