Not vaccinated yet? You may be at risk of Covid reinfection

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Washington, Oct 20 | If you think once infected with Covid-19 gives you immunity, then you may be wrong. According to new models without vaccination and masks, people once infected with Covid can be reinfected within four months, Nature reported.

Within four months after initial infection, the average reinfection risk rises to about 5 per cent. The risk can increase upto 50 per cent by 17 months, the report said. At the same time, natural immunity was found to last for less than half as long as it does for the common-cold coronaviruses.

The predictions are based on the genetic relationships between SARS-CoV-2 and other coronaviruses.

“Immunity is relatively short-lived. You should still get vaccinated even if you got infected,” Jeffrey Townsend, a bioinformatician at the Yale School of Public Health in New Haven, Connecticut was quoted as saying.

While more data over the coming months, and years, will be necessary to know precisely how long natural immunity lasts, it’s not necessary “to wait for that”, Townsend said.

To estimate the durability of SARS-CoV-2 immunity, the team wanted to understand how antibody levels from a previous infection affect the risk of reinfection.

They combined genetic data from SARS-CoV-2, three endemic coronaviruses that cause the common cold, and the closely related coronaviruses SARS-CoV and MERS-CoV to build a viral family tree.

Using this, they modelled how viral traits have evolved over time. Together, these traits provided an estimate of the decline in antibody levels after SARS-CoV-2 infection, and of other factors needed to understand reinfection risk.

The findings suggest that Covid-19 is likely to transition from a pandemic disease to one that is endemic, Townsend said.

Still, many unknowns remain, including the probable severity of disease when someone is reinfected. Individuals can also vary significantly in both their susceptibility to reinfection and, if reinfected, their disease course — including whether they are likely to get long Covid, the report said.

Source: IANS

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Military chopper crashes in TN Gen Bipin Rawat on board (2nd Ld)

Military chopper crashes in TN Gen Bipin Rawat on board (2nd Ld)

New Delhi, Dec 8 | Military chopper crashes in TN Gen Bipin Rawat on board (2nd Ld). A military chopper crashed in Tamil Nadu’s Coonoor on Wednesday in which Indian’s Chief of Defence Staff General Bipin Rawat was travelling along with others.

The number of casualties are still unknown and local police has ascertained only three rescued and searches are on for others.

Along with General Rawat, his wife Madhulika Rawat, Brigadier L.S. Lidder, Lieutenant Colonel Harjinder Singh, Naik Gursewak Singh, Naik Jitender Kumar, Naik Vivek Kumar, Naik B. Sai Teja, Havaldar Satpal and pilots were travelling in the chopper.

Confirming about General Rawat presence, Indian Air Force tweeted, “An IAF Mi-17V5 helicopter, with CDS Gen Bipin Rawat on board, met with an accident today near Coonoor, Tamil Nadu.”

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The force said that an inquiry has been ordered to ascertain the cause of the accident.

The rescued suffered serious injuries and have been taken to Wellington cantonment.

Source: IANS

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Military chopper crashes in TN Gen Bipin Rawat on board (Ld)

Military chopper crashes in TN Gen Bipin Rawat on board (Ld)

New Delhi, Dec 8 | Military chopper crashes in TN Gen Bipin Rawat on board (Ld). A military chopper crashed in Tamil Nadu’s Coonoor on Wednesday in which Indian’s Chief of Defence Staff General Bipin Rawat was travelling along with 14 others.

The number of casualties are still unknown and local police have ascertained only three rescued and searches are on for others.

Emergency rescue teams have been rushed to the spot.

 Military chopper crashes in TN Gen Bipin Rawat on board (2nd Ld)

Confirming about General Rawat’s presence, Indian Air Force said, “An IAF Mi-17V5 helicopter, with CDS Gen Bipin Rawat on board, met with an accident today near Coonoor, Tamil Nadu.”

The force said that an inquiry has been ordered to ascertain the cause of the accident.

The rescued suffered serious injuries and have been taken to Wellington cantonment.

Source: IANS

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