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All the different strains of coronavirus explained

All viruses mutate constantly, and scientists can identify the different strains.

Coronavirus has mutated into a number of notable strains since the first case was detected in December 2019, with the latest found in Australia believed to originate in Russia.
It has led to 14 day hotel quarantine being extended for dozen of people who don’t have the virus, after two people from a Qatar Airways flight that landed in Brisbane last month tested positive for the strain.
In 2004, Joe Sarlak was asked to provide a quote to build an aircraft hangar for Qatar Airlines’ royal family VVIP division.
Passengers on a Qatar airlines flight tested positive for the Russian strain. (AAP)

“Whilst this is not considered a variant of concern, little is known about the strain,” a letter sent to passengers said.

“Information about the characteristics of these variants is rapidly emerging” America’s Centre for Disease Control and Prevention said last month.

“Scientists are working to learn more about how easily they spread, whether they could cause more severe illness, and whether currently authorised vaccines will protect people against them.”

Different coronavirus strains

This strain, known as B.1.1.7, was first identified in the United Kingdon and has since spread globally, including to Australia where it sparked lockdowns in Perth, Melbourne and Brisbane.

Scientists believe it could be up to 70 per cent more transmissible than others and slightly more deadly. However, more studies will be needed to verify this claim.

People enjoy the snowy conditions in Edinburgh, United Kingdom, despite the lockdown. (Getty)

American authorities predict the B.1.1.7 variant will become the dominant strain in the United States this month.

Last month, Germany’s Health Minister said the virus variant first detected in Britain last year now accounts for more than a fifth of all positive tests in the country.

South African strain

The B.1.351 strain was first identified in South Africa, where it has become the dominant type infecting local residents.

Cases and deaths in South Africa have started to fall recently after a second surge of the virus. However, the nation is still battling one of Africa’s most severe outbreaks, with more than 46,000 people dead.

Members of staff speak to residents as they carry out mobile door-to-door virus testing to assess the prevalence of the South African Covid-19 variant in the Ealing district of London. (AP)

Australia’s Chief Medical Officer Paul Kelly has predicted the South African strain to dominate the globe.

The first cases were found in Australia late last year.

South Africa temperately halted the rollout of the AstraZeneca vaccine over the new strain. However, Johnson & Johnson’s vaccine has been tested in South Africa and showed to give strong protection against severe illness.

It is now being rolled out to health care workers.

Brazilian strain

The P.1 strain was first detected in Brazil, and is suspected of fuelling a COVID-19 resurgence in the nation. Brazilian authorities said 260,000 people have already died.

The variant, which was first found in the city of Manaus, appears to be more contagious than other COVID-19 strains.

It can potentially be contracted by someone who was already infected or who has been vaccinated.

Cemetery workers carry the remains of 89-year-old Abilio Ribeiro, who died of the new coronavirus, to bury at the Nossa Senhora Aparecida cemetery in Manaus, Amazonas state, Brazil. (AP)

Public Health England said the variant, called P.1 has been designated “of concern”, “as it shares some important mutations with the variant first identified in South Africa (B.1.351), such as E484K and N501Y.”

“It is possible that this variant may respond less well to current vaccines, but more work is needed to understand this,” it said

The first case has emerged in America on the West Coast this week, according to medical authorities.

Russian strain

More than 70 Australians who returned from overseas this week had 14-day quarantine extended by five days after two people tested positive for the Russian strain, known as B1.1.317.

Moscow, Russia
Two police officers patrol an almost empty Red Square, during lockdown last year in Russia. (AP Photo/Alexander Zemlianichenko)

They landed in Brisbane on a Qatar Airways flight.

Other strains

Two separate teams of researchers said this week they have found a worrying new coronavirus variant in New York City and elsewhere in the Northeast of America.

It is believed to carry mutations that help it evade the body’s natural immune response.

Genomics researchers have named the variant B.1.526. It has appeared in people in diverse neighbourhoods of New York City.

It appears to evade, somewhat, the body’s response to vaccines, as well. And it’s becoming more common.

Denise Padilla, an instructor at the culinary school at Eva's Village, is vaccinated in Secacus, New Jersey.
Denise Padilla, an instructor at the culinary school at Eva’s Village, is vaccinated in Secacus, New Jersey. (AP)

“We observed a steady increase in the detection rate from late December to mid-February, with an alarming rise to 12.7 per cent in the past two weeks,” one team, at Columbia University Medical Center, wrote in a report that has yet to be published.

Will the vaccine work against new strains?

The Australian Government said in December that mutations are common in “SARS-CoV-2 and other viruses, and usually do not affect the infectivity or severity of disease”.

Authorities also noted there is “no evidence” that variants can cause more severe disease.

“The vaccines procured for Australia induce a broad immune response to protect individuals. There is no evidence at this stage that these vaccines would not be effective against the UK variant.”

Container holding the AstraZeneca COVID-19 vaccine is removed from the Emirates airlines plane as the first vaccination doses into the country arrives at Sydney International airport.
Container holding the AstraZeneca COVID-19 vaccine is removed from the Emirates airlines plane as the first vaccination doses into the country arrives at Sydney International airport. (Getty)

British scientists said there has been “reassuring data” on the effects of the vaccines on variants.

– Reported with CNN, AP

Source: 9News | World News

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