How long can the first preventive shot for a baby be delayed after the full moon?

Patient's question:

No

Doctor's answer:

If the baby received the hepatitis B vaccine at birth, it is generally recommended to receive the vaccine on schedule at around one month of age to prevent hepatitis B virus infection.
Advice: If the hepatitis B vaccine was administered late at birth, it is advisable to wait for one month before receiving the second dose. The hepatitis B vaccine should be postponed in such cases.
If the vaccine was administered on schedule at birth, delaying the second dose by more than one week may affect the vaccine's efficacy.