One person has died in Hong Kong and another in the Philippines.
Gabriel Leung, who is the chair of public health medicine at Hong Kong University, told the paper things could get that bad if the virus goes unchecked.
The possibility of the virus being transmitted through pipes immediately drew comparisons to the 2003 SARS outbreak, when this method became a major source of transmission.
China's National Health Commission said that, as of Wednesday, the country has recorded 1,113 deaths and more than 44-thousand infected patients in total.
Meanwhile, experts are attempting to map out the likely course of the illness, Leung told The Guardian.
WHO's Director General Tedros Adhanom Ghebreyesus said the epidemic was "an emergency for China. and a grave threat for the rest of the world".
In an interview with the British newspaper The Guardian, he stated that most experts are inclined to believe that any infected person can transmit the virus to at least two and a half more people, that is, the prevalence rate can reach 60-80%.
Australia's hot, humid summer temperatures may stave off coronavirus, as experts say winter is the best time for the infection to spread. "Maybe not. Maybe this will come in waves".
"Maybe the virus is going to attenuate its lethality because it certainly doesn't help it if it kills everybody in its path, because it will get killed as well", he told The Guardian. If they have, how feasible is it maintain the restrictions there and roll them out to other cities with infected citizens?
The expert is seeking to study whether "these massive public health interventions, social distancing, and mobility restrictions [have] worked in China?".
The government also said civil servants would be allowed to work from home until February 23 to reduce the risk of the virus spreading.