What are the required immunizations and their abbreviations?

Required immunizations typically include the following: DTaP (diphtheria, tetanus, and pertussis), IPV (inactivated poliovirus), MMR (measles, mumps, and rubella), Hib (Haemophilus influenzae type b), HepB (hepatitis B), and varicella (chickenpox). Additional vaccinations like PCV (pneumococcal conjugate vaccine) and Tdap (tetanus, diphtheria, and pertussis booster) may also be recommended. The specific requirements can vary by region and age group, so it's important to consult local health guidelines.