Do I need a booster jab to travel to the USA?

I answered this question last week but as I'm still getting the question so here is advice from the CDC website, I hope it assists in your US travel:

You do need to show any boosters but you do need to show that you are fully vaccinated. As with all rules it may change. According to the CDC website you are considered fully vaccinated:

2 weeks (14 days) after your dose of an accepted single-dose vaccine

2 weeks (14 days) after your second dose of an accepted 2-dose series

2 weeks (14 days) after you received the full series of an accepted COVID-19 vaccine (not placebo) in a clinical trial

2 weeks (14 days) after you received 2 doses of any "mix-and-match" combination of accepted COVID-19 vaccines administered at least 17 days apart*

If you don't meet these requirements, you are NOT considered fully vaccinated to travel to the United States.