Share this
New South Wales has detected its first case of the Omicron BA.4 sub-variant, prompting a warning from health experts about coronavirus reinfections.

NSW Health confirmed the BA.4 infection in a traveller returned from South Africa yesterday, as the state flagged 13,771 new COVID-19 cases and a further 19 deaths.

The World Health Organisation first flagged the new strain, and another, BA.5 in mid April, warning they contain mutations that may help them evade the immune system in people already vaccinated.

The Novel Coronavirus SARS-CoV-2 - also known as 2019-nCoV - is shown under a microscope. The virus causes COVID-19.
WHO said they are monitoring the Omicron BA.4 sub-variant. (AP)

James Wood, a mathematician at UNSW’s School of Public Health and Community Medicine, said it’s likely thousands of Australians have been already been reinfected with the virus after multiple strains emerged.

“We are going to see new sub-variants causing increased transmission in Australia within the next couple of months,” he told Sydney Morning Herald.

“BA.4 and BA.5 in South Africa are clearly causing cases to go up, and we can expect these are already here in low numbers.”

The number of people who have been reinfected is not made public by NSW Health, however data from overseas shows a surge in people who have caught the virus twice.

Victoria has reported almost 10,000 COVID-19 reinfections, between late December last year and the end of March 2022.

The detection of BA.4 in NSW comes weeks after Victoria health authorities confirmed the detection of a new Omicron sub-variant in wastewater.

The sub-variant, which is believed to be either BA.4 or BA.5, has been confirmed from samples taken from the Tullamarine catchment.

Source: 9News

Share this
You May Also Like

“Targeted” attacks cause North Carolina power outage

“Targeted” attacks cause North Carolina power outage – CBS News Watch CBS…

Real or artificial: Which Christmas tree is better for your wallet and the environment?

Christmas trees — real and artificial — are increasing in price this…

Champaign County observes 81 years since Pearl Harbor attack

URBANA, Ill. (WCIA) – “Today, we would like to honor and remember…

Biden Spikes Foreign-Born Voting Population by Over 900K in 2022

President Joe Biden is projected to spike the number of legal immigrants securing…

Boy, 11, falls 50ft to his death in Costa Blanca hotel reception while practising parkour

Boy, 11, falls 50ft to his death in Costa Blanca hotel reception…

‘I Don’t Recall’ 174 Times

Louisiana and Missouri on Monday released the entirety of the November 23,…

Honor those killed at Pearl Harbor

HONOLULU – USS Arizona sailor Lou Conter lived through the Japanese attack…

Colorado gay club shooting suspect set to return to court

DENVER – The suspect accused of entering a Colorado gay nightclub clad…

Let us know your Christmas morning breakfast traditions!

Cinnamon Rolls (Copyright 2020 by WDIV ClickOnDetroit – All rights reserved.) JACKSONVILLE,…

Unwelcome bear moves into Florida neighborhood, eats residents’ avocados

DAVENPORT, Fla. (WFLA) — A resident in Davenport, Florida, is not happy…

Sen. Barickman announces retirement |

BLOOMINGTON, Ill. (WCIA) — One longtime legislator is stepping down from the…

Train service in Nigeria capital resumes after deadly attack

ABUJA – Rail service in Nigeria’s capital city resumed on Monday, eight…