The patient, a 25-year-old man, was admitted to a government hospital in Johor for examination and further investigation. MOH investigation showed the patient had to commute daily to work in Singapore.
He had no other close contacts in addition to the mother-in-law and wife.
As of Friday, Malaysia has reported four cases.
In Singapore, the MOH has confirmed 14 new cases of locally transmitted Zika virus infection, bringing the total to 318 cases.
Health officials report a potential new cluster involving one previously reported case and a new case today.
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