Question

What is a Vaccine? Name two diseases that can be prevented by a vaccine. ​

Answer 1

Answer:

A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins.

The two diseases that can be prevented by a vaccine.

• diphtheria.
• tetanus.

hope this helps u mate^_^

Answer 2

Answer:

• A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins.
• Deseases are=
• diphtheria
• tetanus.
• pertussis (whooping cough)
• poliomyelitis (polio)
• measles.
• mumps.
• rubella.