题目内容
A infected body fluidsB against the outbreak severityC the mode of transmissionD the initial days of being infectedE three countries in West AfricaF within a wide range of days The difference between SARS and Ebola viruses lies in______.
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Ebola Outbreak1 You are likely aware that several countries in West Africa are battling an Ebola outbreak. Ebola is a dangerous and often lethal viral infection. Scientists believe that humans contracted the virus by eating the meat of rare animals. It is now believed that bats are the primary carriers of the virus.2 To date, there are only three major countries in West Africa experiencing a major outbreak: Sierra Leone, Liberia and Guinea. However, other countries such as Nigeria have reported confirmed cases of Ebola with their border.3 Unless you recently visited one of the three affected West countries, your risk of contracting the virus is virtually zero. Unlike other recent airborne virus outbreaks like SARS, the Ebola virus can only be spread through direct contact with an infected person. Specifically, Ebola is spread through contact with body fluids. Though the vims is transmittable, only an infected person exhibiting symptoms is communicable.4 The signs and symptoms of Ebola are non-specific and patients typically exhibit them after a week of contracting the virus. Symptoms may appear as early as two days or as late as three weeks after initial infection. Symptoms include disgust, weakness and stomach pain. More uncommon symptoms include chest pain, bleeding and sore throat.5 Ebola is devastating because of its ability to attack and replicate in every organ of the body. This causes an overstimulation of the body’s inflammatory response, causing the flu-like symptoms. The virus also causes bleeding and impairs the body’s normal clotting mechanism(凝血机制), making bleeding even more severe. Loss of blood volume and decreased organ perfusion(器官灌注)ultimately lead to organ failure and death.6 The current outbreak is the deadliest viral outbreak in over 35 years. While diseases such as the malaria(疟疾)are far more communicable, Ebola is one of the world’s most fatal viral infections. Ebola’s fatality rate exceeds that of SARS.A Am I at risk of contracting the virusB Is the current outbreak the deadliestC How do I know if I have contracted the virusD What areas are currently affectedE What exactly does Ebola do to the bodyF What caused the Ebola outbreak Paragraph 3______
Baseline Exam Is Key to Eye Health Even people with no signs or risk factors for eye disease can suffer vision loss and need to get baseline(基线)eye exams at age 40, says the American Academy of Ophthalmology(AAO)(美国眼科学会) The reminder(提示)is part of the AAO’s EyeSmart campaign to mark Save Your Vision Month in February. " Many eye diseases progress without any warning signs, " Dr. Stephanie Marioneaux, a clinical correspondent for the AAO, said in a prepared statement. "Gradual changes in vision can affect your ability to function independently and have confidence in your abilities. Based on the findings from the initial screening, an eye doctor will create a schedule for follow-up eye exams. People of any age who have symptoms of eye disease or are at high risk due to family history, diabetes(糖尿病)or high blood pressure should consult with their eye doctor to determine how often they should have their eyes checked, the AAO recommends. By 2020, 43 million Americans will be at significant risk for vision loss or blindness due to age-related eve diseases such as cata-racts(白内障)and glaucoma(青光眼). That’s a more than 50 percent increase over the current number of Americans with such vision-threatening diseases. But many Americans are unconcerned about the risk of vision loss. Only 23 percent of Americans are very concerned about losing their vision, while most feel weight gain or joint or back pain are greater worries than vision loss, according to an AAO survey conducted for its EyeSmart campaign. Only the old men with diabetes or high blood pressure should consult with eye doctor.
Baseline Exam Is Key to Eye Health Even people with no signs or risk factors for eye disease can suffer vision loss and need to get baseline(基线)eye exams at age 40, says the American Academy of Ophthalmology(AAO)(美国眼科学会) The reminder(提示)is part of the AAO’s EyeSmart campaign to mark Save Your Vision Month in February. " Many eye diseases progress without any warning signs, " Dr. Stephanie Marioneaux, a clinical correspondent for the AAO, said in a prepared statement. "Gradual changes in vision can affect your ability to function independently and have confidence in your abilities. Based on the findings from the initial screening, an eye doctor will create a schedule for follow-up eye exams. People of any age who have symptoms of eye disease or are at high risk due to family history, diabetes(糖尿病)or high blood pressure should consult with their eye doctor to determine how often they should have their eyes checked, the AAO recommends. By 2020, 43 million Americans will be at significant risk for vision loss or blindness due to age-related eve diseases such as cata-racts(白内障)and glaucoma(青光眼). That’s a more than 50 percent increase over the current number of Americans with such vision-threatening diseases. But many Americans are unconcerned about the risk of vision loss. Only 23 percent of Americans are very concerned about losing their vision, while most feel weight gain or joint or back pain are greater worries than vision loss, according to an AAO survey conducted for its EyeSmart campaign. Gradual changes in vision can affect one’s thought.
Baseline Exam Is Key to Eye Health Even people with no signs or risk factors for eye disease can suffer vision loss and need to get baseline(基线)eye exams at age 40, says the American Academy of Ophthalmology(AAO)(美国眼科学会) The reminder(提示)is part of the AAO’s EyeSmart campaign to mark Save Your Vision Month in February. " Many eye diseases progress without any warning signs, " Dr. Stephanie Marioneaux, a clinical correspondent for the AAO, said in a prepared statement. "Gradual changes in vision can affect your ability to function independently and have confidence in your abilities. Based on the findings from the initial screening, an eye doctor will create a schedule for follow-up eye exams. People of any age who have symptoms of eye disease or are at high risk due to family history, diabetes(糖尿病)or high blood pressure should consult with their eye doctor to determine how often they should have their eyes checked, the AAO recommends. By 2020, 43 million Americans will be at significant risk for vision loss or blindness due to age-related eve diseases such as cata-racts(白内障)and glaucoma(青光眼). That’s a more than 50 percent increase over the current number of Americans with such vision-threatening diseases. But many Americans are unconcerned about the risk of vision loss. Only 23 percent of Americans are very concerned about losing their vision, while most feel weight gain or joint or back pain are greater worries than vision loss, according to an AAO survey conducted for its EyeSmart campaign. Cataracts and glaucoma are related to age.
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