Health
Details of widespread and rapid COVID spread in summer high school camps
A Mortality and mortality (((MMWR) Today’s report COVID-19 was widespread and rapidly among students and staff during the summer high school retreat from July 2nd to August 11th in Wisconsin, where participants had long contact and shared bedrooms. It documents what has spread.
One student who tested negative for SARS-CoV-2 within the week prior to withdrawal could have infected 76% of participants, according to the author of a report from the Wisconsin Department of Health (WDHS). It was the source. , Centers for Disease Control and Prevention, and several US universities.
Some notes before camping
To mitigate the spread of COVID-19, retreat organizers have sent 152 participants traveling from 21 states with positive serological (antibody) tests or SARS-CoV-2 reverse transcriptase within the last 3 months. -Negative polymerase chain reaction (RT-PCR within 7 days before travel) test results. The organizers also required participants to self-quarantine in their households for seven days prior to the trip and to wear masks during the trip.
Teachers (not students) wore masks during outdoor lessons to keep physical distance and set up separate bedrooms. Student and young adult counselors slept in tightly spaced dormitories or yurts with shared bathrooms and shared spaces.
Despite these pre-retreat precautions, one student developed a sore throat, cough, and chills on July 3, and tested positive for RT-PCR on July 5. The students were quarantined in a private room and 11 close contacts were quarantined together. In another dormitory, she was released on July 7, after a negative SARS-CoV-2 antigen test. This has not been verified by public health authorities.
From July 4th to July 7th, 6 and 18 additional students out of 11 close contacts developed mild COVID-19 symptoms. Masks were provided to symptomatic students, but the retreat organizers did not quarantine or contact trace. On July 13, one of the 11 close contacts of the first-episode patient was positive via RT-PCR at a local clinic, and WDHS was notified of the outbreak on July 15.
Expanding outbreak
WDHS conducted an RT-PCR test of 148 participants on 28 July, and from August 5 to 6, 116 participants (76%) confirmed COVID-19 (78; 51%) or probable (38; 25%). There is at least one confirmed case in every dormitory and yurt. No positive tests were found among the four staff members (two teachers, principal, and emergency medical technician) who slept in separate dormitories.
In particular, all 24 participants who tested positive for serology before retreat had negative RT-PCR results. This suggests that it has some protective effect, given the high incidence observed. All confirmed positive and possible participants experienced mild to moderate illness, had a low asymptomatic rate (1%), and no hospitalization or death was reported.
The report confirms that SARS-CoV-2 can spread rapidly between adolescents and young adults at rally, and is a powerful COVID-19 prevention developed in collaboration with public health authorities. It emphasizes the importance of planning.
“To prevent the introduction of COVID-19, mitigation plans include pre-arrival quarantine, pre-arrival and post-arrival testing, symptom screening, isolation and quarantine functions, cohorting, physical distance, mask use, and enhancement. It should also include hygiene and disinfection, and maximum outdoor programming, “the author advises.
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