COVID-19 hits unvaccinated guests harder at spreader wedding

Embargoed until: Publicly released: 2022-02-26 03:00

International

Photo by Al Elmes on Unsplash

Vaccinated individuals are less likely to contract COVID-19 after attending a spreader event, according to a case study of a US wedding where half the guests contracted the Delta variant. Researchers say an unvaccinated child was the likely index case of the spreader event, where 75 per cent of guests were vaccinated. Of the 62 attendees tested for COVID-19, 29 tested positive. 16 of 46 fully vaccinated people tested positive, two of four partially vaccinated people tested positive and 11 of 12 unvaccinated people tested positive. While this data is from one small event, the researchers say it shows the potential for children to spread the virus, the virus to spread among highly vaccinated groups and the additional risk of contracting the virus for those who are unvaccinated.

Attachments

Note: Not all attachments are visible to the general public. Research URLs will go live after the embargo ends.

Research JAMA, Web page

Journal/
conference: JAMA Network Open

Research:Paper

Organisation/s: Minnesota Department of Health, USA

Funder: This work was supported in part by the US Centers for Disease Control and Prevention Epidemiology and Laboratory Capacity for Prevention and Control of Emerging Infectious Diseases (grant No. U50/CK000371), which funds infectious disease surveillance activities at the Minnesota Department of Health and provides guidelines for surveillance.

Media Contact/s

Contact details are only visible to registered journalists.