Chinese aerospace expert denied visa by US, US scholars criticise: another political damage to science
Release time: 2024-01-11
The Chinese person who was denied a visa was Yu Guobin, Deputy Director of the Chinese Moon Exploration and Space Engineering Centre, who was scheduled to make a presentation on China's plans to develop the Moon and Mars at the "microsymposium58" seminar held in the United States on 19 March. It is learnt that the "microsymposium58" will be followed by a conference on lunar and planetary science. According to the organiser of the symposium, Professor Jim Head of Brown University, Yu Guobin has already received approval from the Chinese government to attend the symposium, however, the U.S. government in Beijing has not given him permission to attend the symposium.
Korean health authorities had said that no triple infections of MERS have been found worldwide, expressing optimism about controlling the spread of MERS. But the discovery of instances of thrice-infected people has shattered that preconception. Why are cases of triple infections so important? If MERS only occurs up to the second infection, that is, if only the first MERS infected person, A, is able to spread the MERS virus to the outside world, and if all the infected people get the virus from A (which is what happened up to the first day), then the path of MERS transmission can be "cut off" by tracking down and quarantining all the people who have had close contacts with A. MERS transmission path.Learn more