The main infection source of epidemic type B encephalitis virus____________
举一反三
- Epidemic B encephalitis virus was transmitted by A: mosquito B: mouse C: flea D: fly
- The basic features of infectious disease are A: There are infectivity, pathogen, epidemic, immunity. B: There are infectivity, patients, immunity, epidemic. C: There are source of infection, route of transmission, susceptibility, immunity. D: There are infectivity, epidemic, endemic, relapse. E: There are pathogen, reinfection, epidemic, immunity.
- Which one can lead fetal anomaly in pregnant? A: Influenza B virus B: encephalitis B virus C: Rubella virusv D: Mumps virus E: Poliovirus
- The<br/>three basic links in epidemic process refer to (). A: The<br/>source of infection B: Factors of transmission C: The<br/>route of transmission D: The susceptible population E: Transmission<br/>mode
- Pathological increasing of Ly may occur in ( ). A: bacteria infection B: virus infection C: tissue injury D: acute toxicosis