Local media said nearly 200 people have been quarantined and several hospitals have been closed after the death of lab technician Darya Shipilova The facility specializes in dangerous pathogens Key points and original sources are listed below.

• Local media said nearly 200 people have been quarantined and several hospitals have been closed after the death of lab technician Darya ShipilovaS1

• The facility specializes in dangerous pathogensS2