Monday, March 1, 2021
Home World World:The Lancet Infectious Diseases journal charts the first confirmed case of Covid-19...

World:The Lancet Infectious Diseases journal charts the first confirmed case of Covid-19 reinfection in the United States

Covid-19 patients may experience more severe symptoms the second time they are infected, according to research released Tuesday confirming it is possible to catch the potentially deadly disease more than once.
A study published in The Lancet Infectious Diseases journal charts the first confirmed case of Covid-19 reinfection in the United States — the country worst hit by the pandemic — and indicates that exposure to the virus may not guarantee future immunity.

The patient, a 25-year-old Nevada man, was infected with two distinct variants of SARS-CoV-2, the virus that causes Covid-19, within a 48-day time frame.

The second infection was more severe than the first, resulting in the patient being hospitalised with oxygen support.

The paper noted four other cases of reinfection confirmed globally, with one patient each in Belgium, the Netherlands, Hong Kong and Ecuador.

Experts said the prospect of reinfection could have a profound impact on how the world battles through the pandemic.
In particular, it could influence the hunt for a vaccine — the currently Holy Grail of pharmaceutical research.

“The possibility of reinfections could have significant implications for our understanding of Covid-19 immunity, especially in the absence of an effective vaccine,” said Mark Pandori, for the Nevada State Public Health Laboratory and lead study author.

“We need more research to understand how long immunity may last for people exposed to SARS-CoV-2 and why some of these second infections, while rare, are presenting as more severe.”

– Waning immunity? –

Vaccines work by triggering the body’s natural immune response to a certain pathogen, arming it with antibodies it to fight off future waves of infection.

But it is not at all clear how long Covid-19 antibodies last.

In a linked comment to The Lancet paper, Akiko Iwasaka, a professor of Immunobiology and Molecular, Cellular and Developmental Biology at Yale University, said the findings could impact public health measures.

“As more cases of reinfection surface, the scientific community will have the opportunity to understand better the correlates of protection and how frequently natural infections with SARS-CoV-2 induce that level of immunity,” she said.

“This information is key to understanding which vaccines are capable of crossing that threshold to confer individual and herd immunity,” added Iwasaka, who was not involved in the study.

LEAVE A REPLY

Please enter your comment!
Please enter your name here

- Advertisment -

Most Popular

Mumbai:Mumbai on Tuesday recorded the season’s lowest temperature so far at 16 degree Celsius

Apart from the metropolis, several other parts of Maharashtra also reported a drop in night temperatures, resulting in chill and cool breeze in those...

HARYANA:Chief Secretary said that such overloaded vehicles have not only become a major cause of accidents

To ensure that there is no overloading in vehicles from other states involved in carrying mined material, Haryana Chief Secretary Vijai Vardhan Monday directed...

Nagpur bench: Mere possession of a dead animal’s skin would not amount to an offence

The Nagpur bench of Bombay High Court bench recently held that that mere possession of a dead animal’s skin would not amount to an...

Canada:Baloch activist Karima Baloch who had escaped Pakistan in 2016 to take refuge in Canada was found dead at Harbourfront in Canada.

Baloch activist Karima Baloch who had escaped Pakistan in 2016 to take refuge in Canada was found dead at Harbourfront in Canada. According to news...

Recent Comments