Published on Free to use under the Unsplash License

This photograph depicts a microbiologist in what had been the Influenza Branch at the Centers for Disease Control and Prevention (CDC), while she was conducting an experiment inside a negatively-pressurized biological safety cabinet (BSC) within the Biosafety Level 3-enhanced laboratory. The airflow into the BSC helps prevent any airborne virus particles from escaping the confines of the cabinet, and as part of her personal protective equipment (PPE), she was wearing a powered air purifying respirator (PAPR), which was filtering the air that she was breathing.

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