New virus “Determination of close contact from two days before onset” Chinese researcher February 24, 14:06
As the spread of the new coronavirus spreads worldwide, researchers at the Center for Disease Control and Prevention recently determined that a person was in close contact with an infected person within two days before the onset of the infection. People who have contacted must also be referred to as "heavy contacts", "he said.
With the spread of the new coronavirus worldwide, Dr. Ji Chuan, a researcher at the Centers for Disease Control and Prevention in China, responded to an interview with China Central Television on 21 this month.
Among them, the researcher determined that “heavily contacted persons” determined that “those who came into contact after the infected person had developed the disease were referred to as“ deeply contacted people ”, but within two days before the onset of the infected person It is also necessary to make those who have done this a "dense contact". "
* Ji = Nun