History of Vaccines Blog
As of today, The College of Physicians of Philadelphia and The History of Vaccines have published a book. It has been in the making for the past several months and features new material and material adapted from the History of Vaccines website.
Every year, beginning in early fall, public health messages go out to the American public encouraging influenza immunizations. The reason for this is simple to understand. Influenza causes yearly epidemics during the cold months in each hemisphere – December to March in the northern hemisphere and June to September in the southern hemisphere.