How long does it take scientists to develop a vaccine against a virus that emerged unexpectedly?
Introduction
Scientists work hard to develop vaccines against each and
every viruses. When a virus out breaks scientists started researching about the
virus and disease. But scientist may take too long time to develop a vaccine
for certain diseases like Ebola. There are many reasons why they are unable to
develop vaccines in timely manner. When a new disease starts spreading,
often spreads unchecked before raising alarm. It often spread most where there
health facilities not good. Like rural areas.
The process of developing vaccines
To develop a successful
vaccine, scientists needs to understand the cause of the disease and what kind
of virus or bacteria it is. Sometimes it is also difficult to collect the
necessary samples. But when there is an
urgent need of vaccines, companies try to make vaccines and make failed drugs
and make loss. To make good vaccines scientists has to do many researches. Once
they get to know the cause or types of virus or bacteria they had to search for
animal models to test early vaccine. Most commonly they used mammals for the
testing. But sometimes they can’t use the vaccines to them because the specific
animal may not have the virus at the moment. So they have to wait for log to
test the vaccines.
Conclusion
We are making progress on
certain vaccines. But still it take much time to develop a good vaccine like it
take more than 10 years to develop a vaccine, for Ebola and it’s a small
miracle that we can get close to developing one in an emergency in less than
three years. But still they can’t control the virus being spread.
