The DTaP and Tdap vaccines both protect against three bacterial infections: diphtheria, tetanus and pertussis, whereas the Td vaccine only protects against diphtheria and tetanus. In addition, the vaccines vary in terms of who should receive them and the quantities of vaccine proteins they contain: 1  DTaP: The DTaP vaccine is given to infants and young children in a series of five shots â at 2 months, 4 months, 6 months, 15 to 18 months, and again at 4 to 6 years of age. Tdap: The Tdap vaccine is different from the DTaP vaccine because it contains lesser quantities of diphtheria and pertussis proteins.
1 To prevent a heart attack, take two low-dose (81 mg) aspirin every day if youâre at risk or over 40.  If you think youâre having a heart attack, take 325 mg of aspirin, and make sure to chew the aspirin before swallowing, because it gets into the bloodstream quicker.
However, general guidelines are as follows: 1  For a headache or muscle ache, take 325 mg of aspirin every 4-6 hours. 2  To prevent a heart attack, take two low-dose (81 mg) aspirin every day if youâre at risk or over 40.