Answer:
Lyme disease
Step-by-step explanation:
Lyme disease can also be referred to as Lyme borreliosis. It is a bacterial infection generally caused by the Borrelia bacterium carried by deer ticks. One of the major symptoms of the Lyme disease is skin redness. This redness usually occurs one week after a patient has been bitten by a tick; the redness occurs at the site where the patient is bitten.
Other symptoms include joint pains, inflammation etc.
The hunter might have been bitten by a deer tick, hence the redness and the other symptoms, the doctor suspects Lyme disease.