Though none of the vaccines offer 100% protection, the vast majority of people who receive two doses will be protected against severe disease, which leads to admission in the ICU, says the WHO chief scientist
Predicting that the COVID-19 pandemic is likely to have subsequent waves as well, Dr. Soumya Swaminathan, chief scientist at the World Health Organization, who has been maintaining a keen eye on the developments in India, says the efforts put in in the next 6-18 months will be most critical in battling the pandemic.
“A lot depends also on the evolution of the virus itself, the ability of vaccines to keep up with variants, and it also depends on the duration of protective immunity of vaccines. A lot of this is changing,” she says.
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