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BSL-4

A researcher inspects protective gear.

How to make sure the labs researching the most dangerous pathogens are safe and secure

By Joseph Rodgers, Filippa Lentzos, Gregory D. Koblentz, Minh Ly | Biosecurity

This scanning electron microscope image shows SARS-CoV-2 in yellow.

Did the SARS-CoV-2 virus arise from a bat coronavirus research program in a Chinese laboratory? Very possibly.

By Milton Leitenberg | Biosecurity

Hot zone in the heartland?

By Elisabeth Eaves | Biosecurity, Investigative Reporting