In a new study published in Clinical Infectious Diseases, Brazilian researchers detailed three cases of acute, transient hearing loss in adults who were infected with Zika virus. All patients were admitted to an ear, nose, and throat emergency department in the summer of 2015. One patient had laboratory-confirmed Zika, and the other two were probably infected with the flavivirus.
These are the first cases of acute hearing losses described during the current epidemic that began in Brazil.
The first patient was a 23-year-old man who was admitted to the hospital for hearing loss 2 weeks after suffering a fever, itching, and joint pain. The hearing loss lasted 4 days, and audiometry testing showed mild loss in the right ear. Blood tests confirmed Zika virus antibodies.