Overview
- Health officials traced the cluster to exposures at a private hospital near Kolkata, with infections reported among doctors and nurses.
- Authorities isolated cases, quarantined more than 100 contacts with roughly 190 under surveillance, and reported one nurse in a critical coma.
- Investigators link the onset to an undiagnosed patient who died in late December, with laboratory confirmations conveyed to WHO around January 26.
- India’s NCDC activated emergency protocols including contact tracing, high‑risk contact isolation, expanded testing of about 180 people, and mandatory full PPE in affected facilities.
- Neighboring jurisdictions tightened entry screening at airports, while WHO provides technical support and notes no evidence of increased human‑to‑human transmission.