Science Magazine: Covid vaccines may cause Long Covid–like symptoms

In November 2021, in the New England Journal of Medicine, William Murphy, an immunologist at the University of California, Davis proposed that an autoimmune mechanism triggered by the SARS-CoV-2 spike protein might explain both Long Covid symptoms and some rare vaccine side effects....More...

Vaccinated are more likely to be infected with Covid-19

“We must recognise that unvaccinated people are unlikely to cause any more risk to others than the vaccinated, and perhaps less.”...More...

Intravenous injection of mRNA Covid vaccine can induce acute myopericarditis in mice

This study provided in vivo evidence that inadvertent intravenous injection of COVID-19 mRNA vaccines may induce myopericarditis....More...

China continues with its Zero-Covid policy

Public health observers are confident that China’s “zero tolerance” COVID-19 policy will safeguard the country to withstand epidemic flare-ups, although the outbreak in East China’s Fujian Province is still intense and Northeast China’s Heilongjiang Province reported three fresh cases on Tuesday during the national holidays to mark the Mid-Autumn Festival....More...

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...

Preprint: Infectivity and immune escape of the new coronavirus variant of interest C.37 Lambda

“We also observed that the spike protein of the Lambda variant presented increased infectivity when compared with the spike protein of the Alpha and Gamma variants, both of them with reported increased infectivity and transmissibility....More...

Singapore: significant risk of vaccine breakthrough with the Sinovac coronavirus vaccine

There is a significant risk of “vaccine breakthrough” with the Sinovac vaccine, or CoronaVac, with international evidence showing that many who had taken it were later infected with COVID-19, said the Ministry of Health’s (MOH) director of medical services Kenneth Mak on Friday, 18 June 2021....More...