You can get a sickness bug in the summer as long as the bug or virus is hanging around.
While most sickness and sickness bugs or illnesses are common in fall and winter you can get get sick at anytime of the year including spring and summer.
You can get viral infections and even respiratory infections in summer.
While many viral infections are more common in the fall and winter months you can get viral infections including the flu, COVID, pneumonia etc in the summer months.
Common viral infections you can get in the summer are enteroviruses, respiratory viruses and viral gastroenteritis.
I've also gotten the flu before in the summer months although I most commonly get the flu in October which I just got over.
The diseases and conditions that are common during summertime include.
Food poisoning.
Sunburn.
Heat stroke.
Dehydration.
Asthma.
Chickenpox.
Hay fever.
Conjunctivitis.
Flu.
Insect bites and stings.
Lyme disease.
Mumps.
Summer problems.
Waterborne disease.
Diarrhea.
Measles.
Skin rash.
Skin condition.
Headache.
Heat cramps.
Hyperthermia.
Jaundice.
Sunstroke.
Swimmer's ear.
Heat stroke, heat exhaustion, heat cramps and heat rash are very common during summer time.