B.C. health officials have confirmed two new presumptive cases of coronavirus in the province.

Both patients are connected to the province's second case — a woman in her 50s, who had contact with family members visiting Wuhan, China — which was confirmed on February 4.

The new patients are a man and woman in their 30s.

#Coronavirus update:
- Two new presumptive cases of novel coronavirus have been identified in B.C. The two are from China's Hubei province and have been visiting a woman who earlier tested positive.
- The number of cases in B.C. is now four.
- Learn more: https://t.co/3TQZPyf75Q pic.twitter.com/uAwXI1MmfC

— BCCDC (@CDCofBC) February 6, 2020

Provincial Health Officer Dr. Bonnie Henry said investigation within the household resulted in the discovery of the two new cases.

"They have had illnesses that are compatible with the novel coronavirus and, in the course of the investigation, they have both tested positive," Henry said. 

It is likely that the man infected the woman in her 50s.

My statement w/ Dr. Bonnie Henry on 2 new cases of novel #coronavirus in #BC. As recommended on Tues, & together w/ federal partners, we ask ppl who have recently visited Hubei, or have been in close contact w/ someone who has, to self-isolate for 14 days. https://t.co/5xHt1xoa3N

— Adrian Dix (@adriandix) February 7, 2020

Henry added that it's becoming apparent that young, healthy people can display very mild symptoms of the coronavirus, making them initially unaware that they're infected.

As of February 7, there are 31,211 confirmed cases of coronavirus and 637 deaths in China.

"As of 6am Geneva 🇨🇭 time today, there were 31,211 confirmed #2019nCoV cases in #China, and 637 deaths.

Outside China, there are 270 cases in 24 countries, with 1 death"-@DrTedros #EB146

— World Health Organization (WHO) (@WHO) February 7, 2020

In Canada, there are five confirmed cases of coronavirus — three in Ontario, and two in B.C. — as well as these two presumptive cases.

There are also seven Canadians aboard a quarantined cruise ship off the coast of Japan that have tested positive for the virus.