BA.4 Archives - Page 3 of 3 - Coronaheadsup.com

USA: BA.2.12.1 has transmission advantage of ~25% over BA.2 – 1 UPDATE

CDC: “BA.2.12.1 might have a transmission advantage of about 25% over the BA.2 sub variant… The BA.2.12.1 sub variant makes up nearly 30% of sequences identified nationally.” More...

May 2, 2022May 3, 2022 Coronaheadsup.com BA.2.12.1, BA.4, BA.5, Coronavirus, Genome, Infection, New York State, North Carolina, Testing, USA

South Africa: BA.4 and BA.5 increasing as a proportion of sequenced cases 1 UPDATE

An increasing share of South Africa’s Covid-19 cases are the BA.4 and BA.5 sub-lineages of the Omicron variant, suggesting those might have a growth advantage over others, Prof Helen Rees said on Thursday. More...

April 29, 2022May 3, 2022 Coronaheadsup.com Africa, BA.4, BA.5, Coronavirus, Deaths, Genome, Health, Healthcare, Hospitalization, Infection, Omicron, Recombination, South Africa, Testing, Transmission

Preprint: SARS-CoV-2 Omicron – multiple inter-variant recombination events

“By analyzing sequences from a large number of Omicron subvariants, we identified diverse recombination events between two Omicron subvariants and several SARS-CoV-2 variants, suggesting that co-infection and subsequent genome recombination play important roles in the on-going evolution of SARS-CoV-2. More...