21.   --Toxoplasmosis is a parasitic infection that can cause miscarriage or birth defects.

a. + infection >>共 424
viral 12.19%
respiratory 9.08%
bacterial 8.52%
new 4.75%
serious 2.81%
staph 2.60%
intestinal 2.25%
fungal 2.22%
severe 2.01%
upper 1.87%
parasitic 0.73%
parasitic + n. >>共 61
disease 21.03%
infection 10.77%
wasp 7.18%
worm 6.67%
bronchitis 6.67%
gastroenteritis 4.10%
insect 3.59%
mite 3.59%
blood 2.56%
illness 1.54%
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