Why did it take so long to develop the vaccine? there are 3 long processes to go through before producing a vaccine, what are these 3? find out here in this article

It takes 4 years to develop an effective vaccine for MUMPS or BEKE, and that is the fastest vaccine ever made for a disease, because it usually takes longer to develop a vaccine.

Now that there is a COVID-19 pandemic, we want everything back to normal, so we are all waiting to see if the vaccine will come out for this. Many Scientists from all over the world are in a hurry to do this.

166 COVID-19 vaccines are already in testing, but let's talk first, why did it take so long to develop the vaccine? The vaccine has undergone three processes: exploratory research, testing, and manufacturing.

The study first examines the type or design of the vaccine, the most effective for a disease. Because there are so many types of vaccine, not just one, there is a vaccine made directly by the pathogen or the organism that carries the disease, LIVE ATTENUATED VACCINE is called here, but it is the weaker version of the disease.

There is also a vaccine made from the killed pathogen to make sure it does not infect the person being vaccinated, this is called the inactive cell vaccine, when we are injected these vaccines our body adjust and learn to fight the disease, so we will have immunity to the disease.

This stage is usually long because there are many types of vaccines that need to be studied to know if they are effective.

It takes 2 - 4 years for pharmaceutical companies to do research on this, now because the process for COVID-19 is accelerating at the same time many laboratories around the world are studying different vaccine designs.

The research phase for COVID-19 is over in just over a month. COVID-19 is also a group of SARS, so the virus is better known. The vaccine will go straight to the clinical testing stage when it is proven safe and replicable and can be replicated.

Here we are in traffic now, because the clinical trial testing process is long and scrutiny, three phases of clinical testing will go through it.

• In the first phase, ascertaining how the human body will react to the vaccine injected into it, and ensuring that it is safe and effective. Volunteers should be healthy in human clinical testing.
• In phase 2, it is more focused on studying what is the correct dosage of the vaccine and how often it should be given. More people are included in this test.
• In the third phase, the vaccine must pass the safety test and also need to know what its side effects are on people. Repeated and sometimes simultaneous testing at this stage also varies the number of people involved in the tests. We need to make sure the vaccine is safe for people and we do not want it to cause disease,

when phase 3 of the human clinical trial is successful, the vaccine must be approved by the government regulators, when it is ok with them and the new vaccine is definitely safe, then it will go to the manufacturing stage.

According to a drug manufacturing company, it takes six months to three years to produce and deliver vaccines.

So far, more than 166 vaccines for COVID-19 have been developed by various researchers around the world, 23 of which are in human clinical trials. There is vaccine candidate has already been approved but only for the Chinese military it is allowed to use, no vaccine is still allowed for commercial use.

Now that we are facing the COVID-19 pandemic and we all want to end it, it is important to work together and work together with various laboratories and companies to make a vaccine against the disease.