washington u.s. house representatives pass bill wednesday provide 622.1 million control spread zika virus far president barack obama request low senate legislation bill pass republican-controlled house 241 184 largely along party line set confrontation republican-majority senate democratic obama administration white house threaten veto house bill say woefully inadequate obama administration request 1.9 billion tuesday senate clear way expect approval chamber thursday 1.1 billion fight mosquito-borne zika virus link birth defect unlike senate legislation house bill require 622.1 million fully offset spend cut elsewhere many conservative republicans house refuse approve zika fund would add federal budget deficits democrats senate republicans favor treat problem emergency would finance spend cut house republicans argue bill couple 589 million obama administration already shift zika unused fund battle ebola would provide enough money sept. 30 end fiscal year unclear long might take senate house work differences pass respective bill u.s. health officials conclude zika infections pregnant women cause microcephaly birth defect mark small head size lead severe developmental problems baby world health organization say strong scientific consensus zika also cause guillain-barre rare neurological syndrome cause temporary paralysis adults last year brazil begin detect increase microcephaly virus spread rapidly americas new case report warm climates southern u.s. state include florida obama administration say need emergency fund help state local governments eradicate mosquitoes spread virus develop vaccine house approve 622 million combat zika virus