選択的
abdominal
antibiotic
antibody
antiserum
bacteria
bleeding
blur
cold
cure
dangerous
diagnosis
disease
enteric
epidemic
exhaustion
fever
flu
focus
food
gastrointestinal
health
ill
illness
infection
injection
life
medical
medicament
medicine
orange
perforation
pills
red
salmonella
sick
syringe
text
tract
treatment
typhoid
typhus
vaccination
virus