Chickenpox: spread by droplets and direct contact, respiratory tract isolated until the rash is dry and scabby, or until 7 days after the eruption.
Measles: spread by droplets, 3-5 days after the eruption course into the recovery period, respiratory isolation to 5 days after the eruption, complications are not less than 10 days.
Rubella: spread by droplets, the rash appears and lasts for 3 days before subside, and the respiratory tract is isolated until 5 days after the appearance of the rash.
Mumps: spread by droplet, respiratory tract isolated until parotid gland enlargement completely resolved (about 3 weeks).
Influenza: spread by droplets, respiratory isolation to 2 days after fever.
Japanese encephalitis: early vector transmission, isolation until 4 days after normal temperature.
Poliomyelitis: spread by droplet, fecal and oral, isolation period is 40 days after onset. In the first week, droplet spread quickly and there was a large amount of virus in feces, so respiratory tract and digestive tract should be isolated. The later stage of the virus is mainly excreted from the stool, so digestive tract isolation begins during the first week.
Acute viral hepatitis A: fecal, oral transmission, digestive tract isolation until 2 weeks after the disease.
Acute viral hepatitis B: transmission by blood, body fluids, acute phase should be isolated to hepatitis B surface antigen (HBsAg) negative turn or jaundice completely subside. Those who do not turn negative during convalescence should be treated as HBsAg carriers.
Scarlet fever: spread by droplets, respiratory isolation until symptoms disappear, nasopharyngeal secretions culture for 3 consecutive negative, generally 15 days after onset.
Diphtheria: spread by droplet, respiratory isolation to 30 days after symptoms disappear or nasopharyngeal secretion culture for 2 consecutive times to turn negative.
Pertussis: spread by droplet, respiratory isolation until 40 days after onset or 30 days after the onset of spasmosis.
Epidemic cerebrospinal meningitis: spread by droplet, respiratory isolation until normal temperature, 3 days after symptoms disappear, but not less than 7 days after onset.
Acute bacterial dysentery: spread by fecal, oral cavity, digestive tract isolation to symptom disappear after 1 week or two fecal culture turn negative.
