Hi guys I am back with one more current and burning problem that is pandemic covid-19. Well, first of all I want to tell you that what is vaccine? and why vaccination is done?

What is a vaccine?

vaccine is a biological substance designed to protect human 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 disease. A vaccine must contain at least one antigen from the bacteria or virus in order to get a response. Usually a vaccine contain dead or weak microbes of a particular disease.

Vaccination – the act of introducing a vaccine into the body to produce immunity to a specific disease.

Why vaccination is done?

A vaccine activates our immune system without making a sick. many dangerous infectious disease can be prevented in the simple and effective way. From birth, we are constantly exposed to many different viruses, bacteria and other microbes. Most are not harmful, many are beneficial but some can cause disease. The body’s immune system helps protect Us Against infections. When we are exposed to infection, the immune system triggers a series of responses to neutralize the microbes and limit their harmful effect. Exposure to an infectious disease often gives lifelong protection so we don’t contract the same disease again. Our immune system remembers the microbes.

Now what is herd immunity?

When the majority of the population has been vaccine against a disease, there will be a few people left to whom the infection can spread. this protect the few who have not been vaccinated. With the help of vaccination, it is possible to entirely eradicate some disease worldwide. so far, this has been achieved for smallpox.

Nowadays we are aware about the Corona infection.. and many of us has been developed the herd immunity for this viral disease.

COVID-19 VACCINE :-

Vaccine are a critical new tool in the battle against covid-19 and it is hugely and encouraging to see so many vaccines proving successful and going into development. Working as quickly as they can, scientist from across the word are collaborating and innovating to bring us test, treatments and vaccines that will collectively save lives and end this pandemic.

Possible side effects of covid-19 vaccinations

Covid-19 vaccination will help protect you from getting covid-19. you may have some side effects, which are normal signs that your body is building protection. These side Effects may affect your ability to do daily activities, but they should go away in a few days. some people have no side effect.

Common side effects– on the arm where you got the shot

1. Pain

2.redness

3.swelling

You can feel tiredness, headache, muscle pain chills, fever, nausea.

To reduce pain and discomfort where you got the shot – you can apply a clean cool, Wet wash cloth over the area and use or exercise your arm.

To reduce discomfort from fever- drink plenty of fluids and dress lightly.