I am supposed to take my typhoid pills once every other day. today i waited 30 hours, is that a problem?

Oral typhoid vaccine: The way the manufacturer studied this vaccine is exactly every other day- as the directions specify. To deviate is what we call "off label", but thinking about how the vaccine works makes me think you will be fine. Basically u expose yourself to a weakened form of the bacteria so your body can protect you if the real bug shows up. Of course typhoid is only 1 of many foodborne pathogens so careful!