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...

Japan identifies a B.1.1.28 coronavirus strain with E484K and N501Y mutations from a traveller from the Philippines

The National Institute of Infectious Diseases, Japan, identified a B.1.1.28 strain with E484K and N501Y mutations from a SARS-CoV-2-positive sample collected on February 25, 2020 at a point of entry to Japan from a traveller from the Philippines(virus name : hCoV-19/Japan/IC-0824/2021, GISAID Accession ID: EPI_ISL_1198832) (1).  More...