Four Britons have died after contracting gut infections on the archapeligo since last year.
More than 70 cases of the chikungunya virus were reported in the UK in the first six months of this year.
One guest at the five-star resort in Turkey said he thought his six-year-old daughter might die.
The government has announced the end of all Covid restrictions in England.
All unvaccinated residents returning from former green list countries must isolate for seven days.
How are countries enforcing vaccine passports and what can people use them for?
Volunteers "frustrated and angry" at now not being able to travel abroad after vaccine trial.
Tom Williams says he has been refused an approved jab after taking part in the Novavax vaccine.
Both nations have contained Covid outbreaks and maintained very low or near-zero infection rates.
