Question

1st WHAT ARE VACCINES
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Answer 1

Answer:

Vaccines are medicines that are used to prevent a disease and are inserted to humans body by using injections

Explanation:

hope it helps u

Answer 2

Answer:

What Are Vaccines?

A vaccine is a biological substance designed to protect humans from infections caused by bacteria and viruses. Vaccines are also called immunizations because they take advantage of our natural immune system’s ability to prevent infectious illness. To understand how vaccines work, we need to consider how our immune system protects us from infections.

The Immune System

The immune system is a 24-hour machine equipped to manage attacks from invaders to prevent or inhibit infections. It is made up of organs, tissues, and several types of cells that work together to protect the body. However, the next time the antigen is identified, the body recognizes them (memory) and begins to make antibodies against it. Common symptoms, like a sore throat or fever, may be present until the immune system catches up with the invaders. One example is the seasonal flu.

How Vaccines Fit In

The concept behind vaccines is to stimulate an antibody memory response without producing an actual illness. When this happens, you get the immunity without getting sick. A vaccine must contain at least one antigen from the bacteria or virus in order to get a response.

There are several ways an antigen can be used:

• Attenuated live viruses—Weakened forms of a live virus. They do not cause illness, but will create an immune response. Examples include the MMR (measles, mumps, rubella) and chickenpox vaccines.

• Attenuated live viruses—Weakened forms of a live virus. They do not cause illness, but will create an immune response. Examples include the MMR (measles, mumps, rubella) and chickenpox vaccines.Inactivated viruses—A version of the virus that has been killed. Although the virus is dead, antibodies will still be produced. Examples include the polio vaccine.

• Attenuated live viruses—Weakened forms of a live virus. They do not cause illness, but will create an immune response. Examples include the MMR (measles, mumps, rubella) and chickenpox vaccines.Inactivated viruses—A version of the virus that has been killed. Although the virus is dead, antibodies will still be produced. Examples include the polio vaccine.Recombinant—Viruses are made in a lab through genetic engineering. This way, a specific gene can be reproduced. The human papillomavirus (HPV) has several strains. The HPV vaccine can be tailored to protect against strains that cause cervical cancer.

• Attenuated live viruses—Weakened forms of a live virus. They do not cause illness, but will create an immune response. Examples include the MMR (measles, mumps, rubella) and chickenpox vaccines.Inactivated viruses—A version of the virus that has been killed. Although the virus is dead, antibodies will still be produced. Examples include the polio vaccine.Recombinant—Viruses are made in a lab through genetic engineering. This way, a specific gene can be reproduced. The human papillomavirus (HPV) has several strains. The HPV vaccine can be tailored to protect against strains that cause cervical cancer.Conjugate—Bacteria and virus antigens may have a polysaccharide coating, a sugar-like substance to protect it. Conjugate vaccines work around the disguise to recognize the bacteria. The Hib vaccine is an example of a conjugate.

• Attenuated live viruses—Weakened forms of a live virus. They do not cause illness, but will create an immune response. Examples include the MMR (measles, mumps, rubella) and chickenpox vaccines.Inactivated viruses—A version of the virus that has been killed. Although the virus is dead, antibodies will still be produced. Examples include the polio vaccine.Recombinant—Viruses are made in a lab through genetic engineering. This way, a specific gene can be reproduced. The human papillomavirus (HPV) has several strains. The HPV vaccine can be tailored to protect against strains that cause cervical cancer.Conjugate—Bacteria and virus antigens may have a polysaccharide coating, a sugar-like substance to protect it. Conjugate vaccines work around the disguise to recognize the bacteria. The Hib vaccine is an example of a conjugate.Subunit—Uses only the antigens that stimulate an immune response. The flu shot is a subunit vaccine.