Rarely, from mother to child
Chikungunya virus is transmitted rarely from mother to newborn around the time of birth.
To date, no infants have been found to be infected with chikungunya virus through breastfeeding. Because of the benefits of breastfeeding, mothers are encouraged to breastfeed even in areas where chikungunya virus is circulating.
Rarely, through infected blood
In theory, the virus could be spread through a blood transfusion. To date, there are no known reports of this happening.