Gyms and sports training facilities harbor significant levels of unwanted bacteria, fungi and viruses. Air and surfaces are contaminated through touch and bioaerosols.

Air in sports and training facilities is also contaminated

https://link.springer.com/article/10.1007/s10453-019-09613-y

Surfaces in gyms are heavily contaminated with biology.

https://www.jyi.org/2021-february/2021/2/1/fomites-in-the-fitness-center-fitness-equipment-harbors-antibiotic-resistant-and-pathogenic-bacteria

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4276630/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6269393/

Gym cloths carry bacteria, normally the more odor the more bacteria. The clothing can and does help with the spread of biology.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4249026/

If your hands are clean, clients and staff are less likely to transmit germs. Hand hygiene should be a part of any gym’s infection control program.

https://www.healthline.com/health-news/poor-gym-habits-and-the-germs-they-carry

Exercise has a huge impact on human health. A study in Europe, showed strong immune sytems in elderly who worked out. It is critical to keep our sports facilities clean. Secondary infection has had a huge impact on professional athletes. It has also impacted kids in sports and people throughout

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0250907

https://www.nytimes.com/2017/10/06/sports/the-never-ending-battle-against-sports-hidden-foe.html

https://www.contagionlive.com/view/staph-infections-pervasive-in-professional-sports