A new Covid variant has been discovered — here’s what we know so far

A patient arrives at the 28 de Agosto Hospital in Manaus, Amazon State, Brazil, on January 14, 2021, amid the novel coronavirus, COVID-19, pandemic. Manaus is facing a shortage of oxygen supplies and bed space as the city has been overrun by a second surge in COVID-19 cases and deaths.


LONDON — A new coronavirus variant identified in Brazil has exacerbated concern among public health experts, and led to warnings that additional new strains were likely to develop.

News of the variant in Brazil comes after two separate mutant strains of the virus were discovered in the U.K. and South Africa earlier this year.

Researchers are urgently studying the Covid variants, which are suspected to share similar characteristics, to gain a better understanding of the threat they pose.

Viruses naturally mutate and there is no evidence that the newly-discovered strains have more severe disease outcomes.

However, the Covid variants are thought to be more transmissible than the original one that started the pandemic, and this could lead to higher numbers of serious infections and additional deaths.

Health authorities have recommended handwashing, physical distancing and the use of personal protective equipment as a means to prevent virus spread.

What is known about the variant found in Brazil?

Nurses talk in front of the 28 de Agosto Hospital in Manaus, Amazon State, Brazil, on January 14, 2021, amid the novel coronavirus, COVID-19, pandemic.


The NIID said it was difficult to immediately determine how infectious the new strain is and the effectiveness of vaccines against it.

To date, Brazil has recorded more than 8.3 million Covid cases and 207,000 virus deaths, according to data compiled by Johns Hopkins University. The South American country is second only to the U.S. for Covid-related fatalities worldwide.

Travel ban

The U.K. imposed a ban on travelers from South America (and Portugal and Cape Verde) on Friday in an effort to stop people from bringing the new variant into the country.

The country’s Transport Minister Grant Shapps told the BBC it was a precautionary measure. He added that scientists think the coronavirus vaccines will work on the new variant.

“We had a look at this particular mutation, as opposed to many other thousands, very carefully, saw there may be an issue, not so much that the vaccine won’t work, in fact scientists think it will work, but just the fact it is more spreadable,” Shapps said, according to Reuters.

On Thursday, the U.K.’s Chief Scientific Adviser Patrick Vallance told ITV that there was a “bit more of a risk” regarding the Covid variant identified in Brazil when it came to vaccine effectiveness.

What about the mutant strains in the UK and South Africa?

On Dec. 14, health authorities in the U.K. reported a variant to the WHO identified as SARS-CoV-2 VOC 202012/01. It is unclear how the new strain originated, but preliminary findings have determined it is highly infectious.

It initially appeared in southeast England, but it has since become the dominant strain across much of Britain and has spread to more than 50 other countries. Numerous nations imposed bans on travelers from the U.K. as a result.

Professional healthcare workers wearing personal protective equipment (PPE) make their way inside a temporary ward dedicated to the treatment of possible COVID-19 coronavirus patients at Steve Biko Academic Hospital in Pretoria on January 11, 2021.

Phill Magakoe | AFP | Getty Images

Separately, national authorities in South Africa on Dec. 18 announced the detection of variant 501Y.V2. Preliminary studies have shown the 501Y.V2 variant also has increased transmissibility. It has since reportedly been found in at least 20 other countries.

The variants, which originated separately, both share a genetic mutation of the spike protein.

What happens next?