Effects of freezing on the viability of toxoplasma oocysts.
D000818:Animals; D002415:Cats; D003106:Colon / Q000382:microbiology; D005243:Feces / Q000382:microbiology; D005615:Freezing; D051379:Mice; D012621:Seasons; D012988:Soil Microbiology; D013997:Time Factors; D014122:Toxoplasma / Q000254:growth & development / Q000302:isolation & purification / Q000472:pathogenicity*; D014123:Toxoplasmosis / Q000209:etiology