104982
Indirect fatalities in high school and college football have been attributed to heat stroke , heart-related conditions , viral meningitis , and even lightning strikes .
 heat stroke, viral meningitis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 heat stroke, viral meningitis