Shortest known distance between COVID-19 infections? 20 days, researchers say
Shortest known distance between COVID-19 infections?  20 days, researchers say

Shortest known distance between COVID-19 infections? 20 days, researchers say

Twenty days is the shortest known distance between COVID-19 infections in a single patient, new research from the European Congress of Clinical Microbiology and Infectious Diseases found.

Researchers must present a case report of a 31-year-old fully vaccinated woman in Spain who was infected with COVID-19 twice in less than three weeks. She first tested positive on December 20 after receiving a booster shot 12 days before. She was asymptomatic and self-isolated for 10 days. On January 12, she tested positive for COVID-19 again.

Whole genome sequencing showed that the patient, a healthcare professional, had been infected with two different strains of COVID-19. The first infection was with the delta variant, while the second was with the omicron variant.

“This case highlights the potential of the omicron variant to evade the previous immunity acquired either from a natural infection with other variants or from vaccines,” said Gemma Recio, one of the study’s authors. “In other words, people who have had COVID-19 cannot assume that they are protected from re-infection even if they are fully vaccinated.”

The researchers’ results will be presented at the European Congress of Clinical Microbiology and Infectious Diseases in Lisbon, Portugal, 23-26. April.


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