That afternoon, Ava took a turn for the worst and fell into a coma. The Aker's insurance company arranged for Ava to be transported to a private hospital in Bangkok.
She underwent a MRI scan to discover she had Epstein Barr Virus Encephalitis - (EBV) - a type of glandular fever, rarely seen in under 5s.
"The doctors ... filled us with hope that everything was going to be OK." Akers said.
Three weeks later, Ava was flown back to the UK and kept in an intensive care unit.
The doctors gave the Akers the heartbreaking news that the "Ava they knew was gone" and had suggested to take her home.
On July 29, their daughter died.
Ava's parents have since launched a charity called Ava's Angels to collect necessities in support of families with sick children at the Birmingham Children's Hospital.