Rats, mice, and germs.
D000822:Animal Husbandry / Q000379:methods* / Q000592:standards; D000818:Animals; D000830:Animals, Laboratory; D003140:Communicable Disease Control; D004196:Disease Outbreaks / Q000517:prevention & control*; D005260:Female; D008297:Male; D051379:Mice; D051381:Rats; D012376:Rodent Diseases / Q000517:prevention & control*