Researchers have identified the first mouse strain that is susceptible to severe COVID-19 without the need for genetic modification. This development marks a pivotal step forward in infectious disease research, providing an essential tool to develop vaccines and therapeutics for future coronavirus variants and potential pandemics.

A researcher has uncovered evidence of intestinal parasites in a 500-year-old latrine from Bruges, Belgium, and while the finding may induce queasiness in some, it is expected to provide important scientific evidence on how infectious diseases once spread through travel and trade.

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