COVID-19

flu-virus-r-value

How Is the Spread of Infectious Disease Measured?

Estimations of the R0 value are often calculated as a function of 3 primary parameters—the duration of contagiousness after a person becomes infected, the likelihood of infection per contact between a susceptible person and an infectious person or vector, and the contact rate

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surgical-mask-requirements

Surgical Medical Masks ASTM Level 3 Requirements

This post will help you understand meaningful differences between various face mask evaluation methods and best-case use. Understanding the most common mask materials and expected performance metrics helps buyers better decide which mask is most appropriate for associated risk, cost, and wellbeing.

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