A
village has 100 under five children. The coverage of measles
vaccine is 60%. Following a measles case 26 children
developed measles. The secondary attack rate is()
A: 25%
B: 40%
C: 50%
D: 65%
village has 100 under five children. The coverage of measles
vaccine is 60%. Following a measles case 26 children
developed measles. The secondary attack rate is()
A: 25%
B: 40%
C: 50%
D: 65%
举一反三
- All<br/>are true about measles EXCEPT () A: Kopliks<br/>spots appear as rash disappear B: it<br/>is prevented by both active and passive immunization C: otitis<br/>media and meningitis are the most common complications D: TB<br/>is aggravated in post measles
- 1. Which is the first vaccine? A: Smallpox vaccine B: Measles vaccine C: mumps vaccine D: Rubella vaccine
- Measles have reappeared among the kindergarten children. ( )
- German measles virus (rubella), a common cause of exanthema in children, is best described by which of the following statements A: Measles (rubeola) and German measles (rubella) are caused by the same virus B: Incubation time is approximately 3 to 4 weeks C: Vesicular rashes are characteristic D: Onset is abrupt with cough, coryza, and fever E: Specific antibody in the serum does not prevent disease
- 中国大学MOOC:"How long should children be quarantined at home after they have measles？ ( )";