Like Delhi Doctor, Fully Vaccinated Spanish Woman Infected With Omicron 20 Days After Delta. Major Points

New Delhi / Madrid: In the case of a rare progressive infection, a 31-year-old woman in Spain became infected with Omicron 20 days after the Delta variant, which researchers claim is the least known distance between infections. A similar case was reported in 2021 to a 61-year-old Delhi-based vaccination doctor who contracted alpha and delta variants within 19 days.Also read – Delhi Government will offer free booster doses to all eligible beneficiaries at Kovid Vaccination Centers Details here

The Spanish woman, a healthcare worker, first tested positive for the infection on December 20, 2021 in a PCR test during a staff check at her workplace. She was fully vaccinated and received a booster shot 12 days ago. The patient, who had no symptoms, was isolated for 10 days before returning to work. Also read – No one is safe until then …: Johns Hopkins scientist makes big statement amid growing covid case in India

On January 10, 2022, just 20 days after the first test came positive, she developed a cough, fever, and general malaise and underwent a second PCR test, which was also positive. Full genome sequencing showed that the patient was infected with two different strains of SARS-CoV-2 – the delta variant in December and the second omicon variant in January. Also read – Over 1000 new cases in 24 hours: Why there is a sudden surge in covid cases in Delhi | Explained

People with Covid-19 are not immune to re-infection

“This case highlights the potential for avoiding previous immunity derived from natural infections or vaccines with other types of Omicron variants,” said Gemma Resio of the Institute Catala di Salut, Tarragona, Spain. In other words, people who have had covid-19 do not believe they are immune to re-infection, even if they have been fully vaccinated, Resio added.

Previous infection, vaccination against serious disease helpful, hospitalization

However, she said previous infections and vaccinations partially protected the patient from serious illness and hospitalization. “This case also emphasizes the need for complete vaccination and genomic surveillance of the virus in infected re-infected people. Such monitoring will help to identify the types with the ability to partially avoid the immune response, ”noted Resio. The case report will be presented at this year’s European Congress on Clinical Microbiology and Infectious Diseases, April 23-26 in Lisbon, Portugal.

Similar and strange case of Delhi doctor: 5 points

1. Veena Agarwal, a Delhi-based doctor, was infected three times with Kovid-19 – contracted both Alpha and Delta after vaccination.
2. Agarwal was first tested positive on August 16, 2020 and was asymptomatic. She received her first dose of Covishield vaccine on February 1, 2021, followed by a second dose on March 15, 2021.
3. On April 12, she tested positive for the second time and had symptoms such as severe abdominal pain, fever, myalgia and fatigue. Within 19 days, on May 3, she tested positive for the third time.
4. The infection resulted in hypoxia, hospitalization, and illness for up to seven weeks. Full genome sequencing shows that the second infection was caused by an alpha variant and the third by a delta variant.
5. Her case, reported in the peer-reviewed medical journal Frontiers in Medicine, identified a rare progressive infection in 19 days and also confirmed it as a re-infection, with two re-infections and the first such documented case of two progressive infections being presented.

(Based on IANS inputs)