Latest Interviews

Covid-19: Can vaccines keep up with variants?

Alok Jha, Natasha Loder

Driven by the Delta variant and potential mutations within immune-suppressed hosts, the pandemic persists as unchecked global transmission threatens to create vaccine-evading "omega" variants. Experts warn that while current vaccines remain effective against severe outcomes, the primary risk lies in uncontrolled spread leading to higher absolute death tolls and future immune evasion. To prevent this nightmare scenario, scientists advocate for proactive surveillance at human-animal interfaces and the development of rapid variant-specific vaccines alongside stricter laboratory and environmental security protocols.