A 9th-grade student who took part in a summer retreat in Wisconsin has the potential to make more than 100 others sick, the CDC said.
That 9th grade student gave a negative result a week before the retreat. But as soon as he got there, he started to show symptoms and gave a positive result.
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Students do not wear masks at the retreat, and they share dorms with adjacent beds and sit in outdoor classes.
As a result, 76% of students and staff were diagnosed with COVID-19. People with the disease from 14 to 24 years old. They had long exposure and slept together.
All participants were asked to provide documentation of antibody exposure within the past three months or to have a negative coronavirus test less than seven days prior to travel. They were also asked to quarantine themselves in their home for seven days prior to travel.
The Boys High School Camp runs from July 2 to August 11.
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