New mosquito-borne virus in Brazil linked to thousands of birth defects

Pregnant women in any trimester should consider postponing travel to the areas where Zika virus transmission is ongoing.- Centersfor Disease Control and Prevention in the U.S.

TheZikavirus issomething the Public Health Agency of Canada has taken notice of too.

Both agencies are advising pregnant women to consider avoiding orpostponing travel to South and Central America, and parts of the Caribbean, becausethe Zika virus is being blamed for a devastating, rare birth defect.

Here's what we know about the Zika virus so far:

The Zika virus was discovered in Uganda in 1947 but it didn't begin to spread widely in Latin America and the Caribbean until last year.

The current outbreak affects some 14 countries from Mexico to Paraguay, but also including Haiti and Puerto Rico. But most cases have occurred in Brazil. Since the mosquito-transmitted infection appeared in the country last May, scientists believe it has infected more than one million Brazilians.

Doctors now believe Zika virus contributes to microcephaly where a child is born with an unusually small head and stunted brain development.

Since October, more than 3,500cases of microcephaly have been reported in Brazil.

And, as if the onset of the Zika virus wasn't enough, it isn't the only mosquito-born disease currently causing alarm in Brazil, and the region.Dengue fever and thechikungunya virus are on the rise as well.

Doctor Jorge Kalil is the director of the Butantan Institute, a biomedical research centre affiliated with the So Paulo State secretaryof health.

Dr. Kamran Khan studies the spread of infectious diseases, and he's had his eye on the Zika virus for several months now.He's a physician and scientist at St. Michael's Hospital in Toronto.

This segment was produced by The Current's Idella Sturino, Catherine Kalbfleisch and Marino Greco.