A Chicago gym saw dozens of COVID-19 cases after infected people attended HIIT classes without masks

Jaka Getty/Azman

In one week of August, COVID-19 was contracted by 55 students who attended the training courses in a Chicago gym.

Less than one percent of the gymnastics wear masks and almost nobody was socially distant.

The gym had precautions such as temperature sensors, but certain patients had symptoms.

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Dear people were infected with COVID-19 in a Chicago gym in August, according to the Centers for Disease Control and Prävention Morbidity and Mortality Survey (24 February) (CDC).

The outbreak was connected to many HIIT classes conducted on the premises.

According to the CDC, 55 people were contaminated - over half of all students during that period.

Classes were visited by people with symptoms and most gym people have no masks.

The study advises that people not just depend on social distancing or symptom monitoring to avoid indoor outbreaks – the wearing of masks is essential.

Infected people visited a gym with signs such as cough and fever

The gym followed precautions, had classes at a maximum of 25% and had temperature and symptom monitoring customers tested when they were entering.

Nevertheless, 22 people who were present had symptoms the same day, including fever, cough, headache, and smell and taste loss.

Three people went to classes that screened favorably the day or before for COVID-19.

Two patients went to the ER for treatment afterwards, and one person was treated for over a week while nobody died as a consequence of the epidemic.

The CDC published this graph with a description of the Chicago gym in August.

CDC CDC

Masks had to be entered but not during workouts

Two individuals with symptoms said that they had enrolled in five preparation courses during the week and tested positive for infection later.

They both also said they served without masks.

Masks had to go to the gym, but could be withdrawn after the session.

Just about one in four people said that they still had masks when working, and about one in 20 people said they kept social distance.

This event highlights the need for people to wear masks when they are in the gym or with others.

It also underlines the value of quarantine for people with symptoms as they can expose others to illness while waiting for their test results.

High breathing can disperse viral particles, so good ventilation is important for avoiding outbreaks.

Prior research has found that high workouts such as dance fitness or HIIT classes can be especially dangerous for COVID-19 spread.

This is because heavy breathing and a lot of movement will spray viral particles over a small room.

Proper ventilation may lead to mitigating these risks.

It is not clear how well the gym was ventilated in this article, as the CDC did not think it initially built for training courses.

However, previous cases showed that adequate ventilation would avoid gymnastics, including though someone is compromised during a training session.

In one instance since November 2020, 50 athletes were subjected to COVID-19 by a gym coach (infected but without symptoms), and no one else got ill.

According to Dr. Linsey Marr, wellness enthusiast and Virginia Technology specialist, the keys are to open doors and windows to track air quality.

If this is not necessary, wear a mask and hold participants 10 feet apart throughout the exercise.

"The number one thing I can say is to avoid crowds. If you can go when it's not crowded, it's much safer," Marr told Insider before.

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