Amid the outbreak of the Corona pandemic, the World Health Organization has stated that there is no possibility of COVID herd immunity in 2021. Herd immunity is when a a large proportion of the population develops antibodies against a disease. The proportion of population however, may change depending on the disease.
Usually herd immunity can be between 60 and 80 per cent of the population. Herd immunity can be achieved in two ways- firstly, by vaccinating a large part of the population; Secondly, due to the spread of the disease to a large part of the population.
In the case of Corona, the first method is safe. However, it requires an effective and safe vaccine. Meanwhile, the other way is quite dangerous. Because governments cannot leave people to become sick or die in a pandemic.
Herd immunity is also very confusing and scientists keep changing their scale about it. American immunologist Doctor Anthony Fouci earlier said that when 60 to 70 percent of the world’s population is exposed to infection, it will develop herd immunity against the virus.
As the graph of deaths from infection is uncontrollable worldwide, it took the herd immunity percentage to 80 to 85 percent. However, with the mutations in the virus, now the figure stands at 90 percent. In other words, now around 90 percent of the population will be exposed to infection, only then herd immunity is possible.
The global corona virus pandemic outbreak has been going on for almost a year now. Scientists have prepared the vaccine after a lot of hard work. In many countries, including the US, Britain and Russia, governments have initiated the vaccination. The government of India will start the vaccination campaign soon in India. Many countries are working on COVID Vaccines.
India has approved two vaccines simultaneously. These include Oxford’s AstraZeneca Covishield and Bharat Biotech’s Covaxin. Currently the rehearsal for vaccination is going on in the country. Vaccination will start from 16 January.
The United Nations health agency also said that many countries are experiencing extraordinary circumstances with vaccine supply bottlenecks. This is due to an increase in cases of corona virus infection, and many countries offering a second dose to increase initial coverage.