So to your point about H5N1, with the mortality being so high, it's possible that the traditional presentation was the sickest that presented, and that we are starting to see a different population.

Apart from that, low vaccination coverage in India has heightened the vulnerability of individuals to the virus. Also Read: ...

This strain causes severe bronchitis with excessive coughing, requiring nebulizers, inhalers, or oral steroids for relief, ...

More than 300 cases have been reported, which experts have linked to infection with Campylobacter jejuni. Samaan Lateef reports from Mumbai.