Live attenuated vaccines
For example;
BCG (Bacille Calmette Gurein)
OPV (oral polio vaccine)
Oral typhoid vaccine
Yellow fever vaccine
Measles vaccine
Mumps vaccine
Rubella vaccine
Varicella vaccine
Live attenuated vaccines is those vaccine when produced into the body produce artificial active immunization.
These are prepared from live attenuated organism. Due to attenuation process, the organism lost their capacity to produce disease.
Attenuation of organisms is achieved by;
1. Aging of culture
2. Culture of high temperature
3. Passage through another host species
4. Drying, for example; rabies vaccine
5. Selecting of mutant (temperature sensitive)
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