时间:2019-01-13 作者:英语课 分类:VOA标准英语2012年(八月)


英语课

 


Study Looks at Role Airports Play in Spread of Disease, Pandemics



Airports and planes move more than only people. They have also transported diseases such as influenza 1, SARS, and turburculosis.


Yatta Montrell is flying to Hong Kong and Malaysia from Los Angeles. Every time she travels, she worries about getting sick.


“I try to take travelers' shots and carry hand sanitizer,” she said.


Some airports in the United States are able to spread disease more quickly, according to researchers at the Massachusetts Institute of Technology.


They looked at the volume of traffic, the amount of long-range travel and connections from certain airports. New York’s Kennedy airport and LAX in Los Angeles ranked highest by those measurements.


Researcher Ruben Juanes was surprised that Honolulu’s smaller airport ranked third in its ability to spread a pandemic. In a Skype interview with VOA, Juanes explains why.


“It’s in the middle of the ocean so virtually every connection is a long-range connection that can take away infected passengers very quickly over many thousands of kilometers. And even though the number of connections is small, a large fraction of them are hubs in Asia or North America,” Juanes stated.


MIT factored in the travel patterns of individuals: the length of their trips and layovers.


Thomas Valente, professor of preventive medicine at the University of Southern California, says the study is a reminder 2 that airports can spread pandemics more easily than other transportation hubs. 


“Airports move people around and, when you’re at an airport, you have time to wait for a plane to leave or if you’re meeting somebody for it to land," said Valente. "So there’s lots of people sitting in close proximity 3 waiting for things to happen.”


Sometimes a traveler catches a disease that originated 4 far from home.


“Not only will we see more pandemics but we are all globally at more risk to things that are happening in other places,” Valente added.


Jonathan Samet heads the Institute for Global Health at the Universtiy of Southern California. “Many infections are spread just simply by people touching 5 the same surfaces that are contaminated," he said. "So on airplanes again bathrooms, doorknobs are places where infections might spread." 


Health experts say frequent handwashing is a precaution travelers can take to prevent illness when they’re on the plane or at the airport.


MIT’s Ruben Juanes says the study may help forecast how disease will spread when another outbreak occurs. 




n.流行性感冒,流感
  • They took steps to prevent the spread of influenza.他们采取措施
  • Influenza is an infectious disease.流感是一种传染病。
n.提醒物,纪念品;暗示,提示
  • I have had another reminder from the library.我又收到图书馆的催还单。
  • It always took a final reminder to get her to pay her share of the rent.总是得发给她一份最后催缴通知,她才付应该交的房租。
n.接近,邻近
  • Marriages in proximity of blood are forbidden by the law.法律规定禁止近亲结婚。
  • Their house is in close proximity to ours.他们的房子很接近我们的。
v.起源于,来自,产生( originate的过去式和过去分词 );创造;创始;开创
  • The disease is thought to have originated in the tropics. 这种疾病据说起源于热带地区。
  • The art of portrait miniatures was originated in England. 微型画像艺术创始于英国。 来自《简明英汉词典》
adj.动人的,使人感伤的
  • It was a touching sight.这是一幅动人的景象。
  • His letter was touching.他的信很感人。
学英语单词
abdelavi
absolute rating
amino-aldohexose
applying for loans secured
ash shabakah
atrophoderma biotriptica
be annoyed for
berkeley strain
Buttelstedt
carrying through
castellons
cistern
compassionative
contractor's trial
coompanyon
corpora nigricans
corticectomy
cube edge
duty-cylce rating
Eastry
editioprinceps
embraer
et uxor
external yarding distance
extreme fiber-stress
falco rusticoluss
Farnese
fawnling
fixed pulley
flexible route
flux tilts
french method of thinning
gamed the system
general's
grey decision
ground fault interrupter
hay-making system
HDFP
helicoid dichotomous branching
high flow capacity
high temperature converting
Hornstedtia hainanensis
inner quantum number
intertransversarii anteriores cervicis
Land of Opportunity
Larksville
legislative council resolution
liddicoatite
logarithmic difference
macrophage aggregating factor
Malvina Hoffman
mental capacities
microwriters
moving-iron microphone
nanobunch
nickellotharmeyerite
notogenesi
ocular ochronosis
ordonezite
party-hearties
Pashto alphabet
pharyngoconjunctival
Phosphate minerals
poll-tax
prevention of fraud
procedurc name
Psychotria densa
quarter-sawn
removing heat from the lung and dissolving phlegm
retirement savings accounts
return ball
Ru.
sallowing
sanny
saxboard
Schortens
seine boat
semi-serious
signal probability
sisleys
slot number
Spitsevka
still-fragile
stress peak
transition piece
travel rate of zone
trigonal tetartohedral prism
triking
trot-boat
tuman
turbidimetric assay
ultra-portable
unpayment
valley floodplain
vehicle traffics
vortex pattern
water jet nozzle
way of transportation
Weibull
went hungry
yellow broomcorn millet
zemmi