The most likely cause is some kind of infection. Why on earth would you ask here instead of looking up reputable medical sources, or consulting a doctor? No one

The most likely cause is some kind of infection. Why on earth would you ask here instead of looking up reputable medical sources, or consulting a doctor? No one can diagnose over HN. https://www.mayoclinic.org/diseases-conditions/fever/symptoms-causes/syc-20352759 https://www.mayoclinic.org/diseases-conditions/fever/symptom... Probabilities of getting any specific infection like COVID are population rates. They don’t predict individual cases.