Let scratch cat give you a lecture. Red words are vocab words: vaccine: something that prevents you from getting sick. Antibiotic: something that stops the your disease from being contagious. Pneumonia: lung inflammation caused by bacterial or viral infection, in which the air sacs fill with pus and may become solid. Inflammation may affect both lungs.
Info from https://www.cdc.gov/flu/symptoms/symptoms.htm Mr. Barbagello
