After the epidemic infection of infectious diseases, specific immunity is obtained, which increases the immune population and reduces the susceptibility of the population.
举一反三
- 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.
- The prevention and control strategybased<br/>on the three links of the epidemic process of infectious diseases<br/>include (). A: Control sources of infection B: Interrupt the route of transmission C: Kill wild animals D: Protect the susceptible population E: Environmental disinfection<br/>判断题
- The hypofunction of immune defense can lead to susceptibility to _____ A: tumor B: hypersensitivity C: repeated infection D: autoimmune diseases E: graft rejection
- 5) Which increases faster, water use or population increase? It is ________ that increases faster.
- Which term refers to the number of new cases of an infectious disease in a given area or population during a given period of time? A: prevalence: B: incidence, C: epidemic, D: endemic