A tiger at the Bronx Zoo in New York City has tested positive for the respiratory disease caused by the novel coronavirus, becoming the first known case of human-animal     1    , the zoo's chief veterinarian said on Sunday.

Nadia, the 4-year-old Malayan tiger that tested positive, was     2     for the COVID-19 disease after     3     a dry cough along with three other tigers and three lions, the Wildlife Conservation Society, which manages the zoo, said in a statement.

All of the cats are expected to recover, it said. But officials believe this is a unique case because Nadia became sick after     4     to an asymptomatic zoo employee, Paul Calle, chief veterinarian at the Bronx Zoo, told Reuters.

Calle said they did not know which employee infected the tiger. "This is the first time that we have discovered that a person infects the animal and the animal gets sick," Calle said, adding that they planned to share the findings with other zoos and institutions. " I guess     5     we will all have a better understanding as a result.

While the other tigers and lions were also     6     symptoms, the zoo decided to test only Nadia because she was the sickest and   had started to lose her appetite already, and they did not want to     7     all the cats to anesthesia(麻醉), Calle said.

Nadia     8     X-rays, an ultrasound(超声波) and blood tests to try to figure out what was making her sick . They decided to test for COVID-19     9     the surge in cases in New York City, the epicenter of the outbreak in the United States.The first tiger at the zoo, which has been shut since mid-March, began showing     10     of illness on March 27, according to the US Department of Agriculture National Veterinary Services Laboratories.

Autism Spectrum Disorder

Autism Spectrum Disorder, or ASD, affects how people communicate with and relate to others. Most people with autism don’t understand some of the basic social     1     that others take for granted. They might have trouble making eye contact, holding a conversation, or recognizing gestures. And over one-third of people with ASD are nonverbal, meaning they don’t use speech. Along with communication     2    , people with autism often like to follow certain patterns or     3     behaviors. Many are sensitive to bright light or loud noises, and others have physical problems, like trouble walking or picking up small objects. Some have     4     disabilities, but about half have average or above average IQs. It’s also common for people with autism to have a great long-term memory for certain details, and many excel in math, science, music, or art.

With such a wide variety of symptoms, no two people with ASD are alike. The behaviors vary so much that they used to be     5     as different disorders. One was Asperger Syndrome, where people obsess over particular topics,     6    nonverbal social cues, and may not understand appropriate social behaviors.

Even though there’s no cure for ASD, therapy and medication can help people adjust. Scientists are also doing clinical     7     to find other solutions. They’ve learned that 1 out of every 68 children in the US has the disorder, but they still aren’t sure what causes it. No matter why it happens, ASD is being     8     at a higher rate every year. This doesn’t mean it’s becoming more common. It just means more people are aware of the condition and getting professional help early, and awareness is     9    . The more we learn about autism, the more we can understand and relate to those who have it.

It’s important to note that people with ASD deserve the same respect, fairness and chances that people without ASD receive. This will help people with ASD     10     and grow in our communities.

Don’t Blame Apple for Smartphone Addiction

Anxiety and depression have increased recently among young people, and researchers believe that heavy usage of wireless devices is a main reason.

To help fight against this     1    , a couple of large investors —Jana Partners and the California State Teachers’ Retirement System—have turned to shareholder activism .

Specifically, they’ve     2     Apple, demanding that the iPhone maker develop software giving parents more power to limit the amount of time their kids can be active on their phones. The two investors also want Apple to conduct a study of the     3     between smartphone usage and mental health issues.

The sentiment is right. The number of major depression     4     among adolescents rose nearly 30% from 2005 to 2014, according to a study in the journal Pediatrics.

Other studies have specifically linked the rise to use of social media. One, published in Computers in Human Behavior, found that users of     5    social media platforms were three times as likely to suffer from anxiety and depression as those with more       6    usage.

A better way to     7     the issue of smartphone addiction starts with parents. To some degree, this means individual parents setting limits individually on the screen time of their children, and using their     8     leverage (杠杆) as payers of smartphone bills to carry out those limits.

Apple and other device makers already make software that can be used to limit the times a child can be active. Parents can and should be     9       on the social media platforms that their kids are on, allowing them to     10     the total time they are on and the types of interactions they have.

Tech companies, for their part, can always be called on to be better corporate citizens. But criticizing Apple in particular is more about those doing the targeting than finding actual solutions.

They’re still kids, and although there’s a lot that the experts don’t yet know about them, one thing they do agree on is that what the kids use and expect from their world has changed rapidly. And it’s all because of technology.

To the psychologists, sociologists, and media experts who study them, their digital devices set this new group       1     , even from their Millennial (千禧年的) elders, who are quite familiar with technology. They want to be constantly connected and available in a way even their older brothers and sisters don’t quite get. These differences may seem slight, but they    2     the appearance of a new generation.

The     3     between Millennialelders and this younger group was so evident to psychologist Larry Rosen that he has     4     the birth of a new generation in a new book, Rewired: Understanding the ingeneration and the Way They Learn, out next month. Rosen says the technically     5     life experience of those born since the early 1990s is so different from the Millennial elders he wrote about in his 2007 book, Me, MySpace and I: Parenting the Net Generation, that they distinguishthemselves as a new generation, which he hasgiven them the nickname of “ingeneration”.

Rosen says portability is the key. They are    6    from their wireless devices, which allow them to text as well as talk, so they can be constantly connected—even in class, where cell phones are     7     banned.

Many researchers are trying to determine whether technology somehow causes the brains of young people to be wired differently. “They should be distracted and should perform more poorly than they do,” Rosen says. “But findings show teens     8     distractions much better than we would predict by their age and their brain development.”

Because these kids are more devoted to technology at younger ages, Rosen says, the educational system has to change     9     .

“The growth on the use of technology with children is very rapid, and we run the risk of being out of step with this generation as far as how they learn and how they think. We have to give them options because they want their world     10     ,” Rosen says.