A person infected with the delta form of the corona is at risk of being exposed to its oomicron form. This proves that Omicron can take a toll on the body’s immunity even after infection and vaccination. This information has come to the fore in a new study by the Indian Council of Medical Research (ICMR).
This study was done on a health worker who was infected in all three waves. The ICMR scientists emphasized that the booster dose enhances immunity against Omicron. But it diminishes with time.
In such a situation, preventive measures are necessary. The study, published on Monday in the Journal of Infection, studied the case of a healthcare worker from India, who was the first to catch an initial infection with SARS-CoV-2. He was also later infected with the Delta and Omicron forms while he had received both doses of the anti-Covid vaccine.
Delhi man infected thrice
Dr Pragya Yadav, Senior Scientist at NIV, Pune said that the infection was first confirmed on 9 October 2020 in a 38-year-old health worker from Delhi. It got better in a few days. She took the first dose of the vaccine on 31 January 2021 and the second dose on 3 March.
About a year later, in November 2021, the infection was confirmed once again. During this, he complained of body pain for 2-3 days and did not show any other symptoms. After a few days he recovered again. Even during the third wave, he was found infected in January 2022.
He was cured after treatment in home isolation for seven days. Genome sequencing analysis found that in this case the health worker was infected with the delta form for the second time and for the third time he was infected with the Omicron form.