score:6
According to TIMATIC (database used by airlines to check documentation needs) :
Passport
Admission and Transit Restrictions:
Passengers are not allowed to transit through Abu Dhabi (AUH) for more than 24 hours. Passengers must have a confirmed airside hotel booking if their transit time exceeds 12 hours.
Visa
Visa required.
TWOV (Transit Without Visa):
Passengers with a confirmed onward ticket for a flight to a third country within 24 hours. They must stay in the international transit area of the airport and have documents required for the next destination.
Health
Vaccinations not required.
Ethiad states :
This facility is open for Guests visiting the UAE travelling on Etihad Airways and Partner Airlines, and also to Guests with valid tickets issued by any Airlines and fulfilling the eligibility conditions announced from time to time by the UAE Authorities.