How are some disease microorganisms made inactive to use as vaccines?

Vaccines are available for disease-causing germs that remain the same.  Not all germs/viruses remain the same.  The 'flu virus changes or mutates millions of times a day.  It is because they are...

Ammonia is a combination of nitrogen and hydrogen with one nitrogen atom and 3 hydrogen atoms. It can be used as a fertilizer, cleaner, refrigerant, an antimicrobial product for food products, and a...

ammonia is made of 1 nitrogyn and 3 hydrogines and the uses of ammonia like cleaning.

Zirconium is used for: nuclear reactor components - zircaloy 2 (alloy with some Sn, Cr, Fe, O): nuclear fuel rods - zircaloy 4: calandria - Zr-Nb: pressure tubes - U-Zr-Er-H: nuclear fuel ...

Vaccines have a minuscule amount of the disease, so your immune system can easily destroy it and then retain in the immune systems memory the best way to destroy it. That is how vaccines work....