What are the biosafety levels (BSL) in a lab?

In this presentation, we will explain what the different biosafety levels (BSL) are in a lab. We will explain in depth what the different safety measures are in these biosafety levels. In short, there are four different BSL levels:

BSL-1: low-risk organisms that pose little to no threat of infection (e.g. E. coli, cell lines)

BSL-2: human diseases that pose a moderate health hazard (e.g. Hepatitis B, primary cells)

BSL-3: microbes that can cause serious or potentially lethal disease through inhalation (e.g. COVID-19)

BSL-4: highly dangerous, fatal, and exotic microbes (e.g. Ebola)


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