How many are there in a book? <a href=" https://www.gebman.com/index.php/can-you-buy-amoxicillin-over-the-counter-in-canada.pdf#byte ">is it safe to take 1000 mg of amoxicillin at one time</a> "We may have identified that the flu vaccine may also be a vaccine against heart attacks," says lead author Jacob Udell, a cardiologist at Women's College Hospital and a scientist at the University of Toronto.