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The mRNA vaccine developed by Hungarian scientist Katalin Kariko and US colleague Drew Weissman, prevented severe COVID-19, reduced the overall disease burden and enabled societies to open up again.
Initial talks were held regarding the opening of a branch of the company's Chennai-based research centre in Kerala.
The antibodies that had worked so well against the original strain proved less effective at recognising and neutralising emerging variants, leading to breakthrough infections.
The investigation 'raised a question of whether' stroke risk was elevated in the 21-day period post-vaccination versus 22 to 44 days post-vaccination, according to the CDC.
China reported no new COVID deaths for a second consecutive day for Dec. 21, even as funeral parlour workers say demand and waiting time for their services has gone up in the past week, pushing fees higher. The country confirmed 389,306 cases with symptoms as of Tuesday.
The study shows an increased risk of the condition, called thrombosis with thrombocytopenia syndrome (TTS), after first-dose of the Oxford-Astrazeneca vaccine.
The safety data for the Pfizer vaccine is based on 1,678 children under age 5 who received a third shot at least two months after the second dose when Omicron was the main variant in circulation.
The approval was granted under the New Drugs and Clinical Trials Rules, 2019.
In Oman, two doses of vaccine have been made mandatory for entering public places and offices and for foreigners above 18 years of age to enter the country.
He tested positive for COVID-19 in a test conducted at the airport on November 9, after which his samples were sent for genome sequencing.
