Namibia has recorded its first case of cholera in nearly a decade, in a region bordering Angola where an outbreak has killed at least 237 people, the African Union’s health agency said Thursday.

“For the first time after almost 10 years… Namibia reported the first cholera case two days ago,” said Jean Kaseya, director general of the Africa Centre for Disease Control (CDC), headquartered in Addis Ababa, Ethiopia.

“The good news is that Namibia informed us that the person has recovered and been discharged from the hospital. But this was a major wake-up call for the country to strengthen its system and work on… the cholera response,” he added during an online press briefing.

The case in the southern African country concerns a 55-year-old woman who developed “acute watery diarrhea” in the Kunene region bordering Angola.

Angola has been hit by a cholera epidemic since last year that has killed at least 237 people, many in the capital Luanda, according to the Africa CDC.