A team from the ICMR’s National Clinical Registry for Covid evaluated factors related to post-discharge mortality during the first year after Covid in 14,419 participants.
The researchers from the Okinawa Institute of Science and Technology (OIST) in Japan report that increased "fucose" digestion by bacteria in the gut before vaccination was associated with lower numbers of T-cells activated by vaccination.
The researchers measured the immune response in 96 generally healthy employees and found that it was uniformly stronger the longer the time period between vaccination and infection. The longest interval measured was 404 days.
As Covid cases are increasing day by day, Bharat Biotech announced an Intranasal vaccine for Covid-19 called iNCOVACC, it is taken through the nose instead of getting injected.
The vaccine, iNCOVACC (BBV154), is now available on CoWin, and priced at Rs 800 for private markets and Rs 325 for supplies to the Centre and state governments, the Hyderabad-based company said.
Bharat Biotech's intranasal Covid vaccine has been approved by the Union Health Ministry for inclusion in the vaccination programme as a booster dose for those above 18 years of age, official sources said on Thursday.
States including Kerala, Maharashtra, Rajasthan, Tamil Nadu and Karnataka recorded precaution dose coverage of 13 per cent, 13 per cent, 16 per cent, 19 per cent and 20 per cent of their eligible population, respectively.
This step will further strengthen our collective fight against the pandemic, said Union Health Minister Mansukh Mandaviya.
The average daily doses administered has increased to 27.77 lakh doses per day from 11.4 lakh doses per day (of 15 days) prior to the launch of the campaign.
The Centre partially funded product development and clinical trials through the Department of Biotechnology's, COVID Suraksha programme.
Indonesia was mulling the rollout of the fourth dose of Covid-19 vaccines as the pandemic is predicted to last longer than expected and the antibodies decline after six months of inoculation, Health Ministry spokesman Mohammad Syahril has said.
To increase the uptake of precaution dose ofSputnik V vaccine by the due beneficiaries, availability of Sputnik V vaccine (Component I) and functionality of private CVCs may be ensured, he wrote.
The US Food and Drug Administration (FDA) on Friday authorised emergency use of the Moderna Covid-19 Vaccine and the Pfizer-BioNTech vaccine for the prevention of Covid-19 in children down to 6 months of age.
CoronaVac uses a dead version of the SARS-CoV-2 virus. It is being used in vaccination campaigns in various countries.
The countrywide vaccination drive was rolled out on January 16 last year with healthcare workers getting inoculated in the first phase. Vaccination of frontline workers started from February 2 last year.
India's Covid-19 vaccination coverage exceeded 191.96 crore as of Friday morning. This has been achieved through 2,41,17,166 sessions.
Corbrvax is also offered in a single-dose vial, making it more convenient for vaccine administration. It eliminates vaccine wastage, which is a major advantage for private hospitals.
The CEPI will fund the researchers to conduct activities including immunogen design, preclinical studies, manufacturing process development, and a Phase 1 clinical trial.
Although vaccine manufacturers have created booster doses for the elderly, the immunologist said "the booster had no impact on deaths, despite all the rah-rah," suggesting that two vaccine doses were enough to prevent death and serious illness.
India launched vaccination for all people aged more than 45 years from April 1 last year. The government then decided to expand its vaccination drive by allowing everyone above 18 years of age to be inoculated against the viral disease from May 1 last year.