Each year, the ancient contest between human vulnerability and circulating illness reasserts itself, and Delhi's current H1N1 surge is no exception. In a city of extraordinary density, the swine flu strain is finding its most willing hosts among the very young and the very old, reminding physicians and families alike that familiar viruses can return with unfamiliar force. Doctors are calling for vigilance not out of panic, but out of the hard-won knowledge that early attention and simple precaution remain humanity's most enduring defenses.
Delhi H1N1 surge prompts expert warnings for vulnerable groups
Children under five and elderly populations face elevated risk of severe complications; vulnerable groups with underlying health conditions require heightened medical attention.