More vaccine choices: On Bharat Biotech’s intranasal COVID-19 vaccine
Nearly three months after Bharat Biotech’s intranasal COVID-19 vaccine was granted emergency use approval for primary vaccination of adults, the vaccine has now
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Coronavirus
Corbevax booster should be a vaccine of choice
Due to faulty clinical trial design, the superiority of Corbevax heterologous booster over homologous boosters is not known On January
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What is causing a surge in COVID-19 cases in India?
In addition to BA.4 and BA.5, India and about half-a-dozen other countries have reported BA.2.75, which is a new sub-lineage of Omicron
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Every reinfection increases the risk to health
Reinfection contributes to additional risk of deaths and adverse health outcomes in the pulmonary and several extrapulmonary organ systems
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In haste: On vaccinating children against COVID-19
India could have waited for evidence of benefit of vaccinating all children The emergency use authorisation (EUA) granted on April 26
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Boost for boosters: On Corbevax as booster dose
With the approval of Corbevax as a booster dose, India will have a heterologous shot
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Why pangolins may not be the intermediate host for SARS-CoV-2 virus
Pangolin coronavirus produced moderate disease in hamsters and was less virulent
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COVID-19 booster dose may not alter disease severity trend
A cross-sectional survey of nearly 6,000 people across age groups including those over 80 years of age carried out through
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Why cats and dogs are less susceptible to Omicron
The progenitor of the Omicron variant might have emerged in mice and then spread to humans
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Not mild for all: On community transmission of Omicron
India has admitted community transmission in the belief Omicron is mild Even at the peak of the second wave in
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T cell immune responses seen a year after infection
Strong and longstanding T cell responses were seen even when people were not reinfected or vaccinated
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Recombination of two virus variants seen since 2020
The Alpha and Wuhan strain recombinant was the first; the latest is a mixture of two Omicron sub-lineages Mutations are
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Children more unlikely to produce antibodies against SARS-CoV-2 virus
Study comparing adults and children was done when Wuhan strain was in circulation; results may not hold true for Delta and Omicron
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