Plasma Therapy For COVID-19 | How it is works ?

Nowadays, COVID-19 is treating with various medications which are either newly discovered drugs designed to treat COVID-19 or the repurposed drugs which are already using to treat the other disease. The new method which finds effective is the Plasma Therapy or Convalescent plasma. This involves using blood plasma from people who have recovered from COVID-19 and infusing it into patients who currently have the disease.

Now, The Most Frequently Asked Questions Are Given Below:-

What is Plasma?

>Plasma can be defined as the liquid portion of blood that remains when all red and white blood cells and platelets have been removed. 

>It was over a hundred years ago that Emil Behring was awarded the first Nobel prize for physiology and medicine for his work demonstrating that plasma could be used to treat diphtheria.

Why Plasma Therapy is used to treat Coronavirus disease?

>The key component of plasma for treating infections is antibodies. Antibodies are Y-shaped proteins that are highly specific for whichever infection a person has previously encountered. They are produced in vast quantities by B cells of our immune system in order to bind to the invading virus and then target it for destruction

>Convalescent plasma involves the transfer of antibodies from donors who have already mounted an immune response, thus offering immediate (but transient) protection to the recipient.

What is the outcome of using Plasma Therapy in treating Coronavirus disease?

>The handful of early reports in which COVID-19 patients have been treated with convalescent plasma have garnered plenty of interest. Each has concluded that plasma therapy is safe and improves patient outcome, but there are significant limitations to each of these studies. 

>To begin with, each study has only treated a maximum of ten patients. Also, there were no control patients (people who weren’t given convalescent plasma), so it’s impossible to know how the patients may have responded without treatment.

What are problems which can caused by the Plasma Therapy?

>First, artificially supplying antibodies might make an infection worse. This is due to a rare phenomenon called antibody-dependent enhancement (ADE). Antibodies that bind to a virus may be taken up by cells expressing antibody receptors. This could enable the virus to enter cells that are not normally susceptible to infection, which may increase the number of new viral particles made. This classically occurs in dengue infection, but has also been a concern for MERS coronavirus.

>A second theoretical risk is that pre-formed antibodies may block the body’s own immune response from responding adequately. We know this occurs with maternal antibodies; antibodies passed naturally from mother to offspring can prevent infants from responding correctly to vaccination. This is why most childhood vaccines are started after eight weeks of age.

How much safe is Plasma Therapy?

>It’s important to bear in mind that there are several potential risks with receiving plasma from another person. Mild side effects include developing a fever or allergic reactions, such as a rash and an itchy sensation. The plasma should also be compatible with the recipient’s blood group to prevent transfusion reactions.