Fifty-three people contracted cholera in Manzanillo, a city in the eastern province of Granma, and three died from the bacterial disease, the Cuban government said Tuesday.

“A variety of germs have been identified among all the patients seen to, with 53 cases diagnosed with Vibrio cholerae, of whom the three fatalities were elderly adults ages 95, 70 and 66, all with records of chronic illnesses,” the Public Health Ministry said in a statement published in the offical daily Granma.

In the case of the three people who died, “the standard investigations are being carried out to determine the exact cause of death for each one.”