Are sick pigs the reason cases of Zika have exploded in northeastern Brazil?
"Because these countries have had more time to prepare than Brazil, they
have been able to plan prospective studies of birth defects – tracking
thousands of pregnant women. These should provide more robust data, if,
and when, any rises occur. That will be vital to clarifying the extent
of Zika’s link to birth defects, or whether other factors (or
co-factors) are at play in north east Brazil."
http://www.nature.com/news/zika-and-birth-defects-what-we-know-and-what-we-don-t-1.19596
http://www.nature.com/news/zika-and-birth-defects-what-we-know-and-what-we-don-t-1.19596