Please excuse that this article is only available in German.
In Brazil, two cases have been reported recently in which the affected persons were infected by two Corona virus variants at the same time. Although the two individuals were only mildly ill (both in their 30s), scientists are concerned. Besides the Brazilian variant (B.1.1.7), once B.1.1.248 (Brazilian/Japanese variant) and once B.1.91 (Portuguese variant) were found. …
Which kinds of Corona vaccines do or will we have?
Vaccines can be divided into three groups:
mRNA, vector and dead vaccines.