A teenager who returned from a holiday in Tonga with swollen eyes and fingers and a rash has contracted the mosquito-borne Zika virus, tests have revealed.
Student Jen Byrn received a call from her doctor on Tuesday morning after a ten-day wait for blood test results.
'They said the test came back as positive for Zika, and to just rest, stay hydrated and take Panadol if I'm in pain,' Ms Byrn, a student from New Zealand, told Daily Mail Australia.
She said she was already feeling a lot better 10 days after she returned from a holiday with a violent rash, sore eyes, headaches and swollen fingers.
'It hasn't affected me as much. I'm still a bit weak and tired but it hasn't stopped me catching up with friends,' said Ms Byrn.
The UN health agency has warned that the mosquito-borne disease was 'spreading explosively' in the Americas, with the region expected to see up to four million cases this year.
Since it was detected in Brazil in April, the virus has spread to 26 countries in the Americas. The World Health Organization declared Zika an international health emergency last week, citing a 'strongly suspected' relationship between the virus in pregnancy and microcephaly, a condition in which infants are born with abnormally small heads and can suffer developmental problems.
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