[...] this vaccination is often recommended for younger age groups if there are risk factors such as heart disease, cancer or a weakened immune system. There are many deaths associated with the disease, primarily in the elderly or in those with compromised immune systems. Since the influenza virus is always changing, a yearly vaccination for all ages is recommended (generally given in the fall). DTaP/Tdor Diphtheria, Tetanus, Pertussis is a vaccine containing protection against three different bacterial diseases. Diphtheria is an infection resulting in high fevers, cough, sore throat and breathing difficulties. Hepatitis B is a viral infection spread by blood or body fluids including sharing of needles when injecting drugs, oral contact with contaminated items of infected individuals and unprotected sex with someone infected with the virus. Since 1988, most children have received a three shot immunization against the virus. HPV (human papilloma virus) is a sexually transmitted virus which can cause cervical cancer in women. [...] there are some potential side effects with all immunizations as well as some contraindications to those wishing to have these vaccines based of medical history, current medications or immune status.