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Antibodies raised by Covid-19 vaccine less effective against few Coronavirus variants

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Antibodies raised by Covid-19 vaccine less effective against few Coronavirus variants

Antibodies induced by some COVID-19 vaccines are less effective at neutralising the new circulating variants of the novel coronavirus, such as the ones reported in the UK, Brazil and South Africa – according to a study published in the journal Cell.

It added that the neutralising antibodies induced by the Pfizer and Moderna Covid-19 vaccines were less effective against the coronavirus variants first found in South Africa and Brazil.

As per the scientists, neutralising antibodies work by binding tightly to the virus and preventing it from entering the cells and this way, it prevents infection. That said, this binding only happens when the antibodies and viruses perfectly match, like a key in a lock. Also, if the shape of the virus changes when the antibody attaches to it, the antibody may no longer be able to recognise and neutralise the virus.

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Unvaccinated people can get infected by coronavirus every 16 months: Experts

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Unvaccinated people can get infected by coronavirus every 16 months: Experts

As per a new study, people who have chosen not to get vaccinated against the deadly coronavirus can keep getting re-infected with the disease every 16 months.

However, experts believe that it is not just once or twice that the re-infection can happen. Unvaccinated people are expected to get re-infected after every 16 years, on an average.

Last year, it was observed that people were getting infected by the virus for second time. However, till then vaccinations had not started at such a large scale.

Now, that vaccination programs have started around the world, scientists have been able to study the comparative data.

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Covid-19 in India: Total vaccinations cross 99-crore mark

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Covid-19 in India: Total vaccinations cross 99-crore mark

The Union health ministry said that the cumulative number of Covid-19 vaccine doses administered in the country crossed 99 crore on Tuesday.

The ministry added that more than 37 lakh (37,92,737) vaccine doses were administered till 7 pm.

It said that the daily vaccination tally is expected to increase with the compilation of the final reports for the day by late night.

In India, the vaccination drive started on January 16 with healthcare workers (HCWs) getting inoculated in the first phase.

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Covid-19 in India: 18,987 new cases in last 24 hours, 20% higher than day before

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Covid-19 in India: 18,987 new cases in last 24 hours, 20% higher than day before

The Union Ministry of Health and Family Welfare (MoHFW) said on Wednesday said that India registered 18,987 new Covid-19 cases in the last 24 hours, which was 20 per cent higher than what the country had witnessed a day before.

Also, total of 246 deaths were reported during the same time, increasing the total reported death count to 4,51,435.

With this, the total Covid caseload in India has increased to 3,40,20,730.

The top five states which have registered maximum cases are Kerala with 11,079 cases, followed by Maharashtra with 2,219 cases, Tamil Nadu with 1,280 cases, Mizoram with 1,028 cases and West Bengal with 771 cases.

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