In National immunization schedule all are included except-
**Core Concept**
The National Immunization Schedule is a program designed to protect individuals against vaccine-preventable diseases by administering a series of vaccines at strategic intervals. The schedule is tailored to the age-specific risk of disease and the efficacy of the vaccines.
**Why the Correct Answer is Right**
The vaccines included in the National Immunization Schedule are selected based on their efficacy, safety, and the burden of disease they prevent. The schedule typically includes vaccines for diseases such as diphtheria, tetanus, pertussis, poliomyelitis, measles, mumps, rubella, and hepatitis B, among others. The inclusion of a vaccine in the schedule is based on its ability to provide herd immunity and protect vulnerable populations, such as infants and young children.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it is a vaccine that is not typically included in the National Immunization Schedule. Vaccines for diseases such as varicella (chickenpox) and rotavirus are often included in schedules, but this option is not a common vaccine.
**Option B:** This option is incorrect because it is a vaccine that is not typically included in the National Immunization Schedule. Vaccines for diseases such as Haemophilus influenzae type b (Hib) and pneumococcal conjugate are often included in schedules, but this option is not a common vaccine.
**Option C:** This option is incorrect because it is a vaccine that is not typically included in the National Immunization Schedule. This option is a vaccine for a disease that is not commonly targeted by national immunization programs.
**Clinical Pearl / High-Yield Fact**
It's essential to note that vaccination schedules can vary between countries, and not all vaccines are included in every national immunization schedule. However, vaccines for diseases such as diphtheria, tetanus, pertussis, and poliomyelitis are commonly included in schedules worldwide.
**Correct Answer:** D.