One in 10 coronary patients infect others before knowing they are sick

The study shows that patients COVIID-19 are infectious before they are aware of this, Kosova Preris broadcast.

This has prompted the American government to issue new warnings to anyone exposed to others, or suspected of having diseases, will be considered a host.

The fact that the virus can spread silence makes it extremely difficult for experts to follow the explosion, which has so far left more than 47,000 people dead and infected some 940,000 people worldwide.

The study in Singapore reviewed 243 cases of coronary between January and March, including 157 infections among people affected in the country rather than abroad.

Scientists found that so-called pre-simtomatic people caused infections in seven different groups of diseases, representing about 6 percent of local cases, the KosovaPress broadcasts.

One of the cases of infection was especially surprising. The infection of a 52-year-old woman was related to her sitting in a church place where two Chinese tourists had previously stayed without symptoms but later became ill.

Investigators were able to detect the broadcast after the review of the CCTV church services. The newest research was published online by CDC.

An early study in China followed suggested that more than one in ten transmissions were from infected people, but they still did not feel sick.