True or False: If a patient has already received a vaccine, there is no need to screen for contraindications again.

Vaccination protocols emphasize the importance of assessing contraindications before each vaccination, even if a patient has previously received a vaccine. A patient's medical status can change over time due to various factors, such as new medical conditions, reactions to previous vaccinations, or changes in health status. For instance, if a patient develops a new immune-related condition or a severe allergic reaction, this may change their eligibility for subsequent vaccinations.

Regular screening for contraindications prior to every vaccination helps ensure the safety and appropriateness of vaccine administration. This practice aligns with public health guidelines aimed at minimizing potential adverse effects and ensuring that vaccines are administered under the safest conditions possible. Therefore, the statement that there is no need to screen for contraindications again after a vaccine has been administered is false.