不明原因流产
unexplained abortion
Abortion with unknown reasons
大流行流感疫苗
Pandemic influenza vaccine
Pandemic influenza vaccines
流行因素
Prevalent factors
epidemiological factor
epidemiological factors
Epidemic factor
Epidemic factors
Epidemiology factors
Influencing factors of epidemic
endemic factors
epidemics
Influential factor
epidemical factor
Epidemiology
人误原因因素
human error cause factors
3类疟疾流行区
Three patterns of malaria-endemic area
A群和C群流行性脑脊髓膜炎
Group A and C epidemic cerebro-spinal meningitis
b型流行性感冒嗜血杆菌
haemophilus influenza type b
Haemophilus influenzae type b
act-hib
b型流行性感冒嗜血杆菌Hib
haemophilus influenza type b
C群流行性脑脊髓膜炎
Neisseria meningitidis serogroup C
epidemic cerebrospinal meningitis by serogroup C