Epidemiology and changing pattern of childhood infectious diseases in Hong Kong.
D002644:Chickenpox; D002648:Child; D002675:Child, Preschool; D003140:Communicable Disease Control; D003141:Communicable Diseases / Q000453:epidemiology*; D005260:Female; D005315:Fetal Diseases; D006723:Hong Kong; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007239:Infections; D008457:Measles; D010284:Paratyphoid Fever; D011247:Pregnancy; D012409:Rubella; D014435:Typhoid Fever