Is this any way to fight an epidemic? The Zika virus, which if contracted during pregnancy can cause a serious birth defect of the brain, has been reported in at least 45 states, including Connecticut. There is no treatment for the infection, neither in patients who are pregnant and those who aren’t—though work continues on a vaccine. Of course, that work could go more quickly if there was adequate funding. Federal officials have known about the seriousness of the Zika virus for more than a year, yet important funding has been tied up in the worst kind of Washington impasse.