Babies with congenital Zika virus infection, besides microcephaly and other diseases that affect the brain, may also suffer from hearing loss known as sensorineural hearing loss.
Congenital infection in infants because of the Zika virus may be also associated with microcephaly and other diseases that affect the brain , with hearing loss , has revealed a new investigation by the Magalhaes Agamenon Hospital in Brazil, and they just publish the Centers for Disease Control and Prevention (CDC) of the United States.
Between November 2015 and May 2016, researchers looked at 70 infants with less than ten months old who had microcephaly and zika infection, and found that 5.8% of children (all of whom suffered severe microcephaly) gave positive sensorineural hearing loss , which is a total or partial loss of hearing to hear sounds in one or both ears.
Sensorineural hearing loss is due to an injury in the hair cells of the inner ear that convert sounds into electrical signals that nerves leading to the brain, and it was known that this condition can be caused by diseases such as cytomegalovirus, the rubella , the herpes simplex , the toxoplasmosis and syphilis .
Four of the 70 children with microcephaly had sensorineural hearing loss but could be attributed to any other cause, so the study’s authors have recommended that this hearing disorder is included in the clinical manifestations related to congenital infection by the virus Zika, and that children with the infection are undergoing hearing tests and, if they do not present deafness at birth, they receive regular monitoring because hearing loss can develop later, and hearing loss may be progressive.