The Senate will vote next week on whether to provide up to $1.9 billion in emergency federal spending to combat the spread of the Zika virus, lawmakers said Thursday.

The move comes nearly three months after the Obama administration made a request for the $1.9 billion, which they say is needed to develop a vaccine and treatments and to control mosquitoes. Zika causes serious birth defects and may cause a neurological disorder called Guillain-Barre syndrome.