A new research might hold the solution to limit the damaging effect of Zika virus. The drug, called chloroquine, has a long history of safe use during pregnancy, and is relatively inexpensive. The researchers at Sanford Burnham Prebys Medical Discovery Institute (SBP) and UC San Diego School of Medicine examined the effect of chloroquine in human brain organoids and pregnant mice infected with the virus, and found the drug markedly reduced the amount of Zika virus in maternal blood and neural progenitor cells in the fetal brain. Pregnant mice received chloroquine through drinking water in dosages equivalent to acceptable levels used in humans. Terskikh concluded that additional studies are certainly needed to determine the precise details of how it works.