How can the coronavirus spread through bathroom pipes? Experts are investigating in Hong Kong

 (CNN)Early Tuesday morning, health officials in Hong Kong partially evacuated residents from an apartment block over fears the coronavirus may have been transmitted via the building's pipes.

Two residents living on different floors of a high-rise tower called Hong Mei House, in northwestern Hong Kong's Tsing Yi, had been infected with coronavirus, health officials said. 

A 62-year-old woman was diagnosed with the virus about a week-and-a-half after a 75-year-old man in the same building became infected. 

Three more cases have since been linked to Hong Mei House. The woman's son, his wife and her father have been diagnosed with the virus. The mother, son and wife share an apartment.

2-11-2020=13,33,53,8,17...story out on 2/12/2020=14,34,54,9,18

 139/34th prime..the story posted on a day with 34 numerology..2+12+20=34
157/37th prime....

the building has 307/37 units..."A preliminary investigation revealed that the 307-room unit in which the second patient lived may have done self-refitting exhaust pipes," he said.