Protect yourself and others from COVID-19

If COVID-19 is spreading in your community, getting into panic is probably not a wise choice for both you and your family members.【小题1】. Follow the advice below and do it all!

Keep your distance at least one metre. 【小题2】Keep an even greater distance between yourself and others when indoors. The further away, the better.

【小题3】What type of mask to wear and when depend on how much virus is circulating where you live, where you go and who you are. Wear a medical mask if you are over 60, feeling unwell, or looking after an ill family member.

Avoid closed and crowded places. Outbreaks have been reported where people have gathered, such as restaurants, fitness classes, and nightclubs. 【小题4】So taking precautions（预防） is even more important.

Prevent constantly touch from your eyes, nose and mouth. Hands touch many surfaces and can pick up viruses. Once infected, hands can transfer the virus to your eyes, nose or mouth.【小题5】

Face shape lets Al spot rare disorders

People with genetic syndromes （综合征）sometimes have revealing facial features, but using them to make a quick and cheap diagnosis can be _______given there are hundreds of possible conditions they may have. A new neural (神经系统）network that analyses photographs of faces can help doctors _______ the possibilities.

Yaron Gurovich at biotechnology firm FDNA in Boston and his team built a neural network to look at the overall impression of faces and _______ a list of the 10 genetic syndromes a person is most likely to have.

They _______ the neural network, called Deep Gestalt, on 17,000 images correctly labeled to match more than 200 genetic syndromes. The team then asked Al to _______potential genetic disorders from a further 502 photos of people with such conditions. It included the correct answer among its list of 10 responses 91 per cent of the time.

Gurovich and his team also _______ the neural network's ability to distinguish between the different genetic mutations （父异）that can lead to the same syndrome. They used photographs of people with Noonan syndrome, which can result from mutations in any one of five genes. Deep Gestalt correctly identified the genetic source of the physical appearance 64 per cent of the time. It's clearly not _______, but it's still much better than humans are at trying to do this.

As the system makes its assessments, the facial regions that are most helpful in the determination are _______ and made available for doctors to view. This helps them to understand the relationships between genetic make-up and physical appearance.

The fact that the diagnosis is based on a simple photograph raises questions about_______ . If faces can reveal details about genetics, then employers and insurance providers could, in principle, ________ use such techniques to have a ________ against people who have a high probability of having certain disorders. ________ , Gurovich says the tool will only be ________ for use by clinicians.

This technique could bring significant________ for those who have genetic syndromes. The real value here is that for some of these ultra-rare diseases, the process of diagnosis can be many, many years. This kind of technology can help narrow down the search space and then be confirmed through checking genetic markers. For some diseases, it will cut down the time to diagnosis dramatically. For others, it could perhaps add means of finding other people with the disease and, ________ , help find new treatments or cures.

At some point in life, many people develop a mental problem. While most people get over it, for others it doesn’t go away easily.

The WHO says that about 20 percent of teenagers worldwide suffer from mental illness. It’s thought that the number of teenagers with mental illness around the world will increase by half by 2022. It will become one of the main causes of illness, and even death.

In China, the picture isn’t bright, either. About one tenth of teenagers under the age of 17 have a mental health challenge.

The world is changing fast. Study and relationships have always caused stress, but today the stress is much higher than before, the WHO said.

A research centre in Oxford University says that young people today have big stresses at school. For example, they experience bullying. In a 2017 report, the centre noted that the Internet was a special source of stress. Online, young people often see “messages about perfection” and this causes the young “great uncertainty about their futures”, says the centre.

Also, according to China Daily, Chinese people don’t ask for help with their mental problems. They fear that others will think less of them if they say that they are in mental trouble. Elaine Peng, a US mental health educator, makes a similar point. And in the UK, over three quarters of young people believe their mental problems have a social stigma. It is reported in 2017 that a quarter of young UK people wouldn’t ask for help if they developed a mental problem.

Young people who don’t ask for help for their condition may be creating problems for themselves in the future. Elaine Peng warned that, “If we hide our mental health, it may remain a problem forever.”

“My message for young people is, if you feel something is wrong within you—ask for help,” he told China Daily.