Final answer:
Myocardial infarction and chorea are the two infections that do not typically exhibit an increase in ESR. Chorea can occur in the setting of acute rheumatic fever, and myocardial infarction is commonly known as a heart attack.
Step-by-step explanation:
When we consider the majority of infections, a common response in the body is an increase in the Erythrocyte Sedimentation Rate (ESR), an indicator of inflammation. However, there are exceptions to this rule. For the question that asks for the two exceptions where there is not an increase in ESR, the correct answer is myocardial infarction and chorea. Chorea, a movement disorder, can be a manifestation of acute rheumatic fever, which is an inflammatory disease that may develop after an infection with Streptococcus pyogenes and does not typically increase ESR. A myocardial infarction, commonly known as a heart attack, also does not consistently demonstrate an increased ESR as part of its presentation.