Answer:
True
Explanation:
Live attenuated vaccine are vaccines that contain a weakened part of the live virus or bacteria and protect the immune response of people with healthy immune system and does not cause disease.
These type of vaccine create a strong immune response but does not work for people who have weak immune system.
Examples of live attenuated vaccines are,
Rotavirus vaccine
Nasal flu vaccine.
A disadvantage of live attenuated vaccine is that it can conceivably mutate back to a virulent strain,They can cause disease, due to genetic reversion or to infection of immunocompromised hosts.
Another disadvantage is that they are difficult to maintain and stored.
