A Canadian woman was diagnosed with a rare Zika virus after she returned from a trip to Thailand.

The Zika virus is usually spread by mosquitoes and the 45-year-old Canadian woman reported that she sustained numerous bug bites during her trip to Bangkok and Phuket last January. The woman from the western province of Alberta became ill after returning to Canada and tested positive.

The human infections with the virus were also reported from parts of Africa and Asia. It was like in the West Nile or dengue fever viruses, it is transmitted to people by a number of mosquito species. The virus was first isolated in 1947 from a rhesus monkey in the Zika Forest of Uganda, Africa and was isolated for the first time from humans in 1968 in Nigeria. From 1951 through 1981, evidence of human infection was reported from other African countries such as Uganda, Tanzania, Egypt, Central African Republic, Sierra Leone and Gabon, as well as in parts of Asia including India, Malaysia, the Philippines, Thailand, Vietnam and Indonesia.