Diphtheria is a disease caused by a bacteria. Symptoms and signs include fever, swollen lymph nodes, trouble swallowing, and coughing. Read about treatment, causes and prevention.

Read about outbreaks of botulism poisoning, causes (Clostridium botulinum toxin), symptoms (muscle paralysis, dry mouth, constipation), history, treatment, and types (foodborne, infant, wound). The botulinum toxin is one of the most lethal known substances.

Read the vaccination schedule for adults and teens, and learn about recommended immunizations for MMR, HPV, Td/Tdap, varicella, tetanus, shingles, hepatitis A and B, and typhoid.

Tetanus is a rare disease caused by bacteria known as Clostridium tetani. These bacteria infect humans via cuts or puncture wounds. Do you need a tetanus booster shot?

Get answers for vaccination questions, and learn about travel vaccines, immunizations during pregnancy, and other vaccine types and dangers.

Whooping cough (pertussis) is a highly contagious respiratory infection caused by Bordetella pertussis. Whooping cough symptoms include severe coughing fits and whooping sound produced during inhalation. The bacteria spreads via airborne droplets produced during sneezing or coughing. There is a whooping cough vaccine that is typically administered during childhood vaccinations.

Read our children's immunization schedule, and learn about vaccines for kids (Hib, polio, DTaP, MMR [Measles, Mumps, Rubella], HPV, flu, chickenpox, meningitis, rotavirus, pneumonia, hepatitis A, and B).

View a comprehensive list of the human vaccines and immunizations that have been approved for U.S. residents to prevent and fight infectious diseases.