A Japanese man in his 80s, who was previously on board the Diamond Princess cruise ship, has died from pneumonia, Japan’s health ministry confirmed on Sunday, bringing the total number of deaths of people who boarded the Diamond Princess to three. 

The ministry did not disclose whether the man had tested positive for the novel coronavirus, citing a lack of consent from his family.

The man had pre-existing medical conditions, the ministry said.

CNN Health has reported that for those with a weakened immune system, the elderly and the very young, there's a chance the virus could cause a lower, and much more serious, respiratory tract illness like a pneumonia or bronchitis.