Observing SARS-CoV-2 Omicron reinfections with different sub-variants SARSCoV2 COVID19 Omicron Reinfection CDCgov
By Tarun Sai LomteSep 27 2022Reviewed by Aimee Molineux In a recent study published in Emerging Infectious Diseases, researchers observed early recurrence of coronavirus disease 2019 .
The study and findings The present study described COVID-19 reinfection cases with different Omicron sub-variants after a primary infection with the BA.1 or BA.2 variant in Marseilles, France. Real-time reverse transcription polymerase chain reaction tests and next-generation sequencing were performed using nasopharyngeal swab samples. Electronic medical files were accessed to obtain data on patients’ age and gender.
Related StoriesSeven cases had primary infection with SARS-CoV-2 Omicron BA.2, followed by BA.4 reinfection in one patient and BA.5 reinfection in six patients. Notably, three cases were reinfected twice; the first reinfection occurred with the BA.1 variant, and the second reinfection with the BA.5 variant. Most reinfected cases were females; the median age of patients was 32 years.