Tuesday, January 21, 2020
Nothing to Sneeze at
It’s a family of viruses that ranges
from a common cold to more dangerous flus and beyond. Coronaviruses. You
might remember the SARS (severe acute respiratory syndrome) outbreak early last
decade: “SARS first sprang to the world’s attention in early 2003, when more
than 8,000 people got sick in an outbreak that spread to 26 countries. Nearly
800 people died.
“Doctors and scientists tracked the
disease to southeastern China, near Hong Kong. From there, travelers soon
carried SARS to other countries in Asia, such as Vietnam and Singapore, as well
as Europe and Canada… Public health officials around the world scrambled to
contain the outbreak. We’ve had no reported cases since 2004.
“SARS is caused by a virus that takes
over your body’s cells and uses them to make copies of itself. The SARS virus
is from a group known as coronaviruses… SARS can spread when people who have
it cough or sneeze, spraying tiny droplets of liquid
with the virus to other people within 2-3 feet. Other people may get the virus
by touching something those droplets hit, then touching their nose, eyes, or mouth… People who live with or are in
close contact with someone who has SARS are more likely to get it than someone
who is just passing by or sharing a room with an infected person.” WebMD.com
(on SARS).
Why the history lesson? Because there is a new
and seemingly deadly new coronavirus building in and around Wuhan, a huge
industrial city on the Yangtze River in China’s heartland, that is already
traveling internationally and killing. With symptoms that mirror pneumonia and
SARS, the new virus – labeled 2019-nCoV – could signal a new pandemic outbreak.
The January 20th BBC.com, explains:
“There are now more than 200
cases [see below, the number has risen in just two days], mostly in Wuhan,
though the respiratory illness has also been detected in Beijing, Shanghai and
Shenzhen… Three people have died. Japan, Thailand and South Korea have reported
cases.
“The new strain of coronavirus, which causes a
type of pneumonia, can pass from person to person, China confirmed… The sharp
rise comes as millions of Chinese prepare to travel for the Lunar New Year
holidays… Although the outbreak is believed to have originated from a market,
officials and scientists are yet to determine exactly how it has been spreading…
“[While contact with animals and animal
byproducts is presumed to be the primary source of infection, the World Health
Organization] also said it believed there had been ‘some limited human-to-human
transmission occurring between close contacts.’… ‘As more cases are identified and more
analysis undertaken, we will get a clearer picture of
disease severity and transmission patterns,’ it wrote on Twitter.” Generally, such viral outbreaks start out in
an “animal-to-human” infection, but if a pandemic follows, it is human-to-human
contact that causes the infectious explosion.
Scanners at many international airports,
including in the United States can often detect individuals at border
checkpoints who have a fever (generally over 101.1F, 38.4C). Customs and
passport officers are on the lookout for individuals evincing symptoms of this
illness. Flushed faces. Sweating. Obvious flu symptoms. Obvious discomfort. Answers
to questionnaires regarding symptoms or recent travels to farms or animal
markets.
Not only are such infected individuals subject
to quarantine, but those traveling with them may be subject to additional
scrutiny plus warnings of possible exposure. These tests are applied both to
people arriving and often to people before they board an aircraft and
expose fellow travelers. Sometimes the detecting device is a simple thermometer
that can be held a few inches from a forehead; in some airports, it is a
universal scan (see above picture). These systems can also be applied to farm
animals, where these viruses often originate, as well as to border control
areas.
The BCC continues: “Coronaviruses are a broad family of
viruses, but only six (the new one would make it seven) are known to infect
people… Scientists believe an animal source is ‘the most likely primary source’
but that some human-to-human transmission has occurred… Signs of infection
include respiratory symptoms, fever, cough, shortness of breath and breathing
difficulties.. People are being advised to avoid ‘unprotected’ contact with
live animals, thoroughly cook meat and eggs, and avoid close contact with
anyone with cold or flu-like symptoms.”
What is the United States doing about
this risk? “Federal officials announced Friday [1/17] that they will
immediately begin screening passengers flying into three major U.S. airports… Health
workers will screen passengers coming from Wuhan… into Los Angeles
International Airport, San Francisco International Airport and John F. Kennedy
International Airport in New York.
“Arriving passengers will answer
questions about any respiratory symptoms and will also have their temperature
taken, he said. Those whose symptoms don’t match up with the new coronavirus
will not be detained… Patients with worrisome symptoms will be taken to a
nearby location — officials would not say where exactly — for further testing.
There they will answer more questions and will be tested for the new virus as
well as other illnesses, such as the flu, that may be causing their illness.
The testing could take hours…” Los Angeles Times, January 20th. And
they will probably miss any connecting flights. Unless the outbreak subsides,
expect the additional screening to cover passengers from additional Asian
cities.
“The US Centers for Disease Control and Prevention (CDC) has
announced the first known case of a new strain of the coronavirus in the US. In
a Tuesday [1/21] press conference, a CDC spokesman said a US citizen returning
from a trip to central China had been diagnosed in Seattle… The US is the fifth
country to report a case of the illness. Nearly 300 cases have been reported in
China, Thailand, Japan and South Korea...” the Guardian.com, January 21st.
Whether this information might impact
travel plans or mingling with recent arriving passengers from exposed areas, I
do not know. But that conventional wisdom about washing your hands and avoiding
touching surfaces that are not generally germ free (welcome to air travel)
continue to have relevance. Caution is not misplaced. Not a huge deal but
taking a few additional steps in maintaining a clean environment cannot hurt.
Hand sanitizer anyone?
I’m
Peter Dekom, and the greatest danger from globalization certainly is not trade.
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