On June 1,a 32-Year-Old Hiker Was Bitten by a Tick

Essay

On June 1,a 32-year-old hiker was bitten by a tick.After one week,he noticed an erythematous ring at the location of the bite.Four weeks later,a physician found a large,macular,centrifugally spreading ring.During the next month,it expanded to 35 cm and faded.Over the next 2.5 years,the man experienced recurrent inflammation of a knee.Identify the periods of incubation,prodromal,illness,and decline.What is the etiology? What caused the symptoms? What treatment should have been administered in July? What treatment should be administered two years later?