How Covid-19 Vaccines Works?

COVID-19 vaccines help our bodies develop immunity to the virus that causes COVID-19 without us having to get the illness.

To understand how COVID-19 vaccines work, it helps to first look at how our bodies fight illness. When germs, such as the virus that causes COVID-19, invade our bodies, they attack and multiply. This invasion, called an infection, is what causes illness. Our immune system uses several tools to fight infection. Blood contains red cells, which carry oxygen to tissues and organs, and white or immune cells, which fight infection. Different types of white blood cells fight infection in different ways.

Sometimes after vaccination, the process of building immunity can cause symptoms, such as fever. These symptoms are normal and are signs that the body is building immunity.

Types of Covid-19 Vaccines:

Currently, there are three main types of COVID-19 vaccines that are authorized and recommended, or undergoing large-scale (Phase 3) clinical trials in the United States.

  1.  mRNA Vaccines
  2.  Protein Subunits Vaccines
  3.  Vector Vaccines

What will you face after getting Covid-19 Vaccine?

While COVID-19 vaccination is a vital step for the public right now, the arm soreness after this vaccination is a side effect that is not so pleasant. It usually only lasts for a day or two. The pain in your arm is the immune system’s response to the vaccine, and that reaction includes inflammation.

Some of the arm irritation also comes from the muscle reacting to the small amount of vaccine liquid that was injected into the arm. With the COVID-19 vaccine specifically, patients typically experience pain, redness and swelling in the arm where they get the vaccine.

Which age group can get covid-q0 ?

The Pfizer vaccine is absolutely safe for children ages 16 years and older. In clinical trials, enough teens participated to show that the vaccine is safe for people as young as 16 years. We have no reason to expect that children would tolerate the vaccine less favorably than adults would. Where as vaccination for below 16 years will be available till early 2022 including the youngest group (babies and toddlers).

Side Effects of Covid-19:

Normal side effects of the COVID vaccine include fever, nausea, and muscle soreness, which usually go away in a few days. Systemic solicited side-effects included headache, fatigue, chills and shiver, diarrhoea, fever, arthralgia, myalgia, and nausea; solicited local side-effects included local pain, swelling, tenderness, redness, itch, warmth, and swollen armpit glands (appendix p 6).

Reviews of Covid-19 Vaccinations:

Large-scale clinical trials of the Pfizer-BioNTech vaccine found a vaccine effectiveness of 95 percent against the original version of the new coronavirus. This vaccine is currently authorized for emergency use in the United States.

Procedure of vaccination begins and here are the names of those countries who have a positive response on covid vaccine for Phizer+BioNTech vaccine.

Pfizer vaccine:

Authorised in: Belgium, Canada, Chile, Costa Rica, Ecuador, Israel, Jordan, Kuwait, Mexico, Philippines, Qatar, Saudi Arabia, Serbia, Singapore, UK, US, WHO

Vaccinations begin:

UK: Dec 8, 2020

Canada: Dec 15, 2020

Saudi Arabia: Dec 17, 2020

Israel: Dec 20, 2020

Qatar: Dec 22, 2020

Mexico: Dec 24, 2020

Serbia: Dec 24, 2020

Kuwait: Dec 24, 2020

Chile: Dec 24, 2020

Latin America: Dec 24, 2020

EU: Dec 27, 2020

Singapore: Dec 30,2020

Jordan: Jan/Feb, 2021

Moderna vaccine:

Authorised in: US, Canada, Mexico, EU, Israel

Vaccinations begin:

US: Dec, 2020

Canada: Dec, 2020

Gamaleya vaccine:

Authorised in: Russia, Belarus, Argentina, Algeria

Vaccinations begin:

Russia: Dec 15, 2020

Belarus: Dec 29, 2020

Algeria: Jan, 2020

United Kingdom:

A team of scientists in the UK recently evaluated the effectiveness of the Pfizer (BNT162b2) and AstraZeneca (ChAdOx1) vaccines against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. The findings reveal that both vaccines are effective in significantly reducing SARS-CoV-2 infection in older adults and providing long-term protection. The study is currently available on the medRxiv* preprint server. Health authorities in the countries liaised with religious leaders to make sure their communities turned up to get their jabs. For example, the UAE’s Fatwa Council issued an Islamic ruling in favor of the vaccine and its chairman, Abdullah bin Bayyah, was vaccinated in public.

1. Bahrain and Israel:

Medical authorities in the three countries approved the jabs early. Bahrain was the second country in the world to approve the Pfizer/BioNTech jab, and it approved the Sinopharm vaccine in November. Israel was the third to approve Moderna’s jab on Jan. 5 and it has secured 6 million doses of it already. It certainly helps that the three countries can afford it.

Israel, the UAE, and Bahrain have invested resources in reassuring the public that the vaccine is safe and effective. That starts at the top: Israeli prime minister Benjamin Netanyahu was the first Israeli to receive the shot, and he did so on live television, while the king of Bahrain also received the jab early on.

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