JOHOR BARU (THE STAR/ASIA NEWS NETWORK) - The Johor husband-and-wife couple who tested positive for the Zika virus has been discharged from hospital.

Johor Health and Environment Committee chairman Datuk Ayub Rahmat, who confirmed the matter, said the couple's health had improved before a medical team allowed them to be discharged last week.

He added that blood and urine tests showed that they did not have Zika virus strains in their system.

It was previously reported that the woman was Malaysia's first case of Zika infection in a pregnant woman.

The woman had reportedly been three to four months pregnant and was living and working in Johor Baru.

She had tested positive for the virus after she contracted the disease through sexual intercourse with her husband who works as a chef in Singapore.

Meanwhile, state health department vector borne disease control unit head Dr Roslinda A Rahman said they would continue to observe the couple after they are discharged.

"As the woman is pregnant, it is still to early to know whether the unborn child has been affected by the Zika virus.

"We have advised them to conduct ultrasound medical checkups on their child weekly," added Dr Roslinda.

The couple were Malaysia's third and fourth cases of Zika. There have been six cases of the Zika virus in the country.