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.

The limitations of Digital Technology in the Fight against the Virus

Digital technology can help and has helped us in the fight against the novel coronavirus. But as coverage and understandable public interest - and concern - about the outbreak has intensified, it seems wise first to look at how the event is     1     some of technology's limitations both in and of itself and how we interpret what it can do for us.

Three themes emerge.

Technology is not immediate. There is a(n)     2     to believe that the recent rapid advances in processing power, algorithmic (运算法则的)development, machine learning and artificial intelligence can now     3     almost instant answers to everything. The digital landscape has changed massively since the SARS outbreak in 2003. But while we may be able to do things more    4    , some things still take time and that is particularly true of a virus. There is no one size fits all here and, indeed, there are real dangers in believing that one analytical strategy and its particular use can be applied universally.

Second, as viruses spread and     5    , so do the data sets around them. We are not dealing with a situation of simple 'garbage in, garbage out' but rather one where new information is emerging daily and there is the further    6    that there were delays in early reporting of the outbreak. That means the results even the wisest medical experts can produce are also going to change. Also, as you might     7     , their methodologies (方法论)vary.

Third, a lot of data is being placed into the digital area, across social media, specialist sites and elsewhere. Here, the    8     with 17 years ago is especially great. But the     9     behind various postings are many. Anyone might be able to access the data via a web browser - and its free availability is laudable (值得称赞的)-but its intended audiences can be very different. In some cases, experts are looking to inform the public but in seems to others they are looking to contribute to and    10    the debate taking place among themselves. These goals are laudable and necessary, but they do not always coexist harmoniously.

Measles (麻疹) breaks out in the Northwest

The U.S. is experiencing outbreaks of measles, a disease it had declared eliminated years ago, largely due to a drop in vaccination (接种疫苗) rates in some communities.

An outbreak in Washington state has sickened 23 people this month, mostly children under 10. Local health officials in Clark County, declared a public-health     1     on Friday. They also urged residents to track     2     symptoms and call ahead before heading to medical centers.

State officials announced the     3     of measles from the U.S. in 2000, thanks to a widespread vaccination program. But travelers entering the country with measles, as well as dropping vaccination rates in some states in recent years, has led to a rise in infection. Last year, there were a total of 17 outbreaks,     4     as three or more cases linked together, according to the Centers for Disease Control and Prevention. New York and New Jersey     5     for roughly half of the 2018 cases. The Clark County outbreak began early last week with three confirmed cases and has since grown to 23 confirmed and two more     6    . Of those cases, 20 were unvaccinated and the others are unconfirmed.

Measles is highly     7    ; the virus spreads through the air by coughing or sneezing, the CDC says. Early     8     include a high fever, cough, runny nose and red, watery eyes, followed by tiny, white spots inside the mouth and the red, bumpy rash (疹子) that people     9     associate with the infection. Children younger than 5 or adults older than 20 are more likely to suffer from complications, according to the CDC.

In order to prevent the further spread of the outbreak, local health officials are posting times and places where residents may have been exposed. They are urging residents who haven’t been vaccinated to     10     whether they have been exposed and to take appropriate action.