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Coronavirus variants causing concerns

The City of Sao Paulo starts the application of Coronavac and Oxford-Astrazeneca vaccines against COVID-19 in elderly people aged 90 years and over at UBS Humait (Basic Health Unit) in Bela Vista, Sao Paulo.Where: Sao Paulo, BrazilWhen: 05 Feb 2021Credit:

A doctor prepares to administer a dose of the Oxford-AstraZeneca vaccine Source: AAP

Just when we thought we'd found a solution, coronavirus variants are putting a new spin on the world's pandemic problems. Fears of reinfection, vaccine inefficiency and quicker transmissibility were all addressed by the World Health Organisation; however no one yet has the answers.


As new variants emerge around the world, evidence is mounting that being infected with COVID-19 may not protect against reinfection. 

In Brazil, researchers are exploring whether reinfections help explain a recent surge in the city of Manaus, where three-quarters of residents were thought to have been previously infected.

South Africa put their inoculation program on temporary hold after studies suggested the vaccines would be minimally effective against the South African B.1.351 variant. 

alc-covid-testing (SBS)
Covid Testing Source: SBS

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