Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].

[Q]: The norovirus is also referred to as the âwinter vomiting bug " Lee-Ann Jaykus  the scientific director for NoroCORE  a food safety initiative thatâs funded through a $25 million grant from the USDA  told Fox News.
The norovirus  which has different strains  can spread easily -- especially in close spaces   Jaykus  said.
When an infected person vomits or defecates  âmassive amounts [of the virus] are excreted â  Jaykus  explained. âThere are millions to billions of particles in one just one gram.â
Food handlers who are sick and donât practice adequate hygiene can easily infect other people. Infected water can also spread the illness  though this more commonly occurs in developing countries   Jaykus  noted.
How do you prevent  it ?
âHand washing is hugely important. In fact  itâs the single most important thing for people attending Olympics." - Lee-Ann Jaykus
âHand washing is hugely important â  Jaykus  said. âIn fact  itâs the single most important thing for people attending Olympics â  she  said.
The norovirus is extremely hard to kill   Jaykus  warned. Inactivating the virus requires a high concentration of bleach. And while itâs easy enough to clean countertops and other similar surfaces with bleach  the same canât be said for carpet and furniture. Alcohol isnât strong enough to entirely kill the virus either   Jaykus  added.
âThe norovirus can be spread for weeks â said  Jaykus   who added that quarantining infected people can also be useful in preventing the spread of norovirus.
âThis is really scary for the athletes -- if you have norovirus you really are incapacitated â said  Jaykus   though no athletes have reported having symptoms of the virus.
[A]: What is norovirus? 2018 Winter Olympics plagued by vomit


[Q]: A top engineering executive at Facebook announced Thursday night that  she 's leaving the company to work on shrinking a powerful medical technology.
 Mary Lou Jepsen   Facebook's executive director of engineering and the head of display technologies at Oculus â the social network's much-ballyhooed virtual reality product â made public  her  upcoming departure in August during a keynote talk in Silicon Valley.
"I have decided to leave Facebook and Oculus to work on curing diseases using some new imaging technologies I've been incubating for awhile  " Jepsen  said at the Anita Borg Institute's Women of Vision awards  an organization which describes  her  as "one of the world's foremost display innovators."
Additionally   Jepsen  said  she 's joined the board of directors of a "$20 billion automotive company that's listed on the New York Stock Exchange " adding that's  she 's "really interested to participate in helping steer the transformation of transportation."
A little more than a year ago   Jepsen  left Google's secretive research laboratory to work on Facebook's Oculus headset technologies. Prior to that   she  co-founded One Laptop Per Child  an organization that aims to make inexpensive computers and give them to children in developing nations.
 Jepsen  told the crowd Thursday night that  she  wants to shrink down magnetic resonance imaging (MRI) â machines used to image brain activity and normally fill an entire hospital room â into affordable  wearable consumer devices.
To that end   she  showed an image on stage of  her  vision  which is to essentially bring all of this tech into something that looks like a ski hat.
 Jepsen  teased a few possible applications of such a device  including to help treat cancer  cardiovascular disease  mental disorders  and neurodegenerative diseases. And in a bizarre twist   she  also said  her  concept might enable people to communicate with their thoughts.
It's uncertain exactly what the shrunk-down MRI technology might be called  how it might work  how far along in development it is  or if any of the applications  she  mentioned are even possible.
"I think that's the point of what we all should all be doing "  she  said. "Trying to make the impossible  possible."
[A]: Facebook's Mary Lou Jepsen is leaving the company


[Q]: On Thursday morning   President Trump  made a remarkable statement: The government couldnât keep federal disaster relief efforts running in Puerto Rico forever. There would need to be some limit   he  hinted in a string of tweets  tied to a dollar amount set by Congress.
The impression left by the tweets was that Trumpâs patience with the disaster in Puerto Rico had run out  that it was time to start winding things down and to let the island fend for itself. Contrast that with  his  assertion to Texas and Louisiana after Hurricane Harvey struck in September.
Texas & Louisiana: We are w/ you today  we are w/ you tomorrow  & we will be w/ you EVERY SINGLE DAY AFTER  to restore  recover  & REBUILD! pic.twitter.com/YQb82K2VSB â Donald J. Trump (@realDonaldTrump) August 30  2017
That contrast is not new.  Trump  downplayed the looming disaster in Puerto Rico from the outset.
Before Harvey threatened the Gulf Coast and Hurricane Irma hit Florida   Trump  was providing constant updates on  their  approach and immediate aftermath on Twitter  marveling at the stormsâ destructive power and offering praise for those responding to the storm.  He  spent  his  weekends at the White House and Camp David  helping to coordinate operations.
Before Hurricane Maria hit Puerto Rico   Trump  tweeted twice.
 He  spent the weekend  it  hit at  his  club in Bedminster  N.J.  â and the following weekend there  too. Last weekend  he  was at the White House â save for several trips to  his  golf course in Virginia.
As criticism of Trumpâs handling of Maria started to mount  Trumpâs first response was a string of tweets in which  he  criticized the islandâs âmassive debt.â  He  began to turn  his  attention to the crisis on the island  scheduling a day-long visit and praising the work of federal employees who were already on the ground.
But everything was tinged with defensiveness.  He  repeatedly reminded people that Puerto Rico was harder to get to than Texas. Praise for first responders was levied with critiques of the âfake newsâ for also covering the numerous problems Puerto Ricans faced.
Fake News CNN and NBC are going out of their way to disparage our great First Responders as a way to "get Trump." Not fair to FR or effort! â Donald J. Trump (@realDonaldTrump) September 30  2017
Despite the Fake News Media in conjunction with the Dems  an amazing job is being done in Puerto Rico. Great people! â  Donald J. Trump (@realDonaldTrump) September 30  2017
 Insistences that things were going well sat next to insults aimed at a politician who had been critical of  Trump  for the lack of resources in  her  city.
The Mayor of San Juan  who was very complimentary only a few days ago  has now been told by the Democrats that you must be nasty to  Trump .  â Donald J. Trump (@realDonaldTrump) September 30  2017
 â¦Such poor leadership ability by the Mayor of San Juan  and others in Puerto Rico  who are not able to get their workers to help. Theyâ¦.  â Donald J. Trump (@realDonaldTrump) September 30  2017
 Note the comment about Puerto Rican workers in that last tweet. Over the weekend   Trump  tweeted a video showing all the hard work that federal workers were doing.
Nobody could have done what Iâve done for #PuertoRico with so little appreciation. So much work! pic.twitter.com/k2jAkIpfjI â Donald J. Trump (@realDonaldTrump) October 8  2017
[A]:
The people of Puerto Rico have become political opponents for Trump