During a trial for attempted murder in 1998, an analysis of the HIV virus was used as evidence — for the first time ever in the U.S. — to help prove a doctor's guilt: A jury found a Louisiana physician had injected his (former) lover with the virus.
Now over two decades later, virologists are scrutinizing strains of the new coronavirus in the same way, to trace where it came from. This modern genetic sleuthing, combined with more traditional methods of interviewing infected people, is invaluable for tracking how and where the virus is progressing. Scientists can often accurately trace a virus's journey. Read more...More about Science, Health, Virus, Coronavirus, and Science
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