Category: Reinfection

Brazil: previously infected and fully vaccinated subjects with high anti-S IgG titers are susceptible to infection by VOC

Here we show that even previously infected and fully vaccinated subjects with high anti-S IgG titers are susceptible to infection by VOC, highlighting that immune responses induced by either natural infection or vaccination may not be sufficient to prevent infection by SARS-CoV-2 variants.  More...

Coronaheadsup.com America, Astrazeneca, Brazil, Coronavirus, Health, Infection, PCR, Reinfection, Sinovac, Symptoms, Testing, Vaccine, Vaccine Breakthrough, Vaccine Waning, Variants

Portugal: coronavirus infection rates rising fastest amongst the 80+ age group

In another sign that the effectiveness of the various coronavirus vaccines is waning quickly, Covid-19 infection rates are now rising fastest amongst the over 80s age group, with a rise of 54% in two weeks in that cohort in Portugal.  More...

Coronaheadsup.com Astrazeneca, B.1.617.2, Coronavirus, Delta, Europe, Health, Infection, Portugal, Reinfection, Science, Transmission, Vaccine, Vaccine Breakthrough, Variants

UK: We have to learn to live with Covid

“Boris Johnson will lead a Downing Street press conference on Monday where he will tell the public the country must “begin to learn to live with this virus” in the clearest indication yet he is preparing to do away with a swathe of restrictions on daily life.”  More...

Coronaheadsup.com Africa, America, Asia, Australasia, Co-infection, Coronavirus, Deaths, England, Europe, Health, Herd Immunity, Infection, Lockdown, London, Long Covid, Mental Heath, MIS-C PIMS, Recombination, Reinfection, Science, Superspreader events, UK, USA, Vaccine Breakthrough

Israel: 5,770 vaccine breakthrough infections, 495 hospitalized, 123 died

The Israeli Health Ministry reported Thursday the efficacy of Pfizer’s coronavirus vaccine in preventing infection has dropped to 39% but the effectiveness in preventing severe illness still remains relatively high.  More...

Coronaheadsup.com Asia, B.1.617.2, Coronavirus, Deaths, Delta, Health, Infection, Israel, Moderna, Pfizer/Biontech, Reinfection, Science, Side Effects, Testing, Transmission, Vaccine, Vaccine Breakthrough, Variants