Editing Rudolf Virchow (section)

====Parasitology====
Virchow worked out the life cycle of a roundworm ''[[Trichinella spiralis]]''. Virchow noticed a mass of circular white flecks in the muscle of dog and human cadavers, similar to those described by [[Richard Owen]] in 1835. He confirmed by microscopic observation that the white particles were indeed the larvae of roundworms, curled up in the muscle tissue. Rudolph Leukart found that these tiny worms could develop into adult roundworms in the intestine of a dog. He correctly asserted that these worms could also cause human [[helminthiasis]]. Virchow further demonstrated that if the infected meat is first heated to 137&nbsp;°F for 10 minutes, the worms could not infect dogs or humans.<ref>{{cite web|title=Discovery of Life Cycle|url=http://www.trichinella.org/history_2.htm|website=Trichinella.org|access-date=24 November 2014|archive-url=https://web.archive.org/web/20140319135716/http://www.trichinella.org/history_2.htm|archive-date=19 March 2014|url-status=dead}}</ref> He established that human roundworm infection occurs via contaminated pork. This directly led to the establishment of meat inspection, which was first adopted in Berlin.<ref>{{cite journal|last1=Nöckler|first1=K|title=Current status of the discussion on the certification of so-called "Trichinella-free areas"|journal=Berliner und Munchener Tierarztliche Wochenschrift|date=2000|volume=113|issue=4|pages=134–138|pmid=10816912}}</ref><ref>{{cite journal|last1=Saunders|first1=L. Z.|title=Virchow's Contributions to Veterinary Medicine: Celebrated Then, Forgotten Now|journal=Veterinary Pathology|date=2000|volume=37|issue=3|pages=199–207|doi=10.1354/vp.37-3-199|pmid=10810984|s2cid=19501338}}</ref>