The contents of vaccines vary, but it usually contains a disease (dead or alive: in weakened or harmless state).
it makes the body create memory cells for future infections
nerves detect changes to salt levels in the blood
A vaccine works by producing antibodies to immunize the body against the virus that vaccine is intended to protect against.
Yes
active natural
MMR vaccine is for preventing measles, mumps and Rubella.
Yes. They have found a vaccine that works 90 percent.
Pneumococcal polysaccharide disease is caused by a bacteria. It can be deadly but a vaccine was developed to head off the disease before it starts. The vaccine works when a small amount of the bacteria is injected into the patient and his or her immunity works against the disease, causing immunity.
it makes the body create memory cells for future infections
How the government works.
There are a number of viral infections for which vaccines are available. Most viral infections, though, have no vaccine available.
The verb in this sentence is "works." It is the action word that describes what the subject (he) is doing.
Hbv vaccine
There have been many contributions from the French. These include art, French fashion, interior design, as well as French architecture.