Richard Harris | KERA News

Richard Harris

During the coronavirus pandemic, many scientists who usually have nothing to do with viruses or infectious disease are turning their attention to COVID-19. For example, one wildlife biologist is raising questions about the accuracy of tests that detect the coronavirus.

Last month the White House issued guidelines suggesting a way to reduce the number of false positive results in antibody tests: Run two tests. But that strategy has not yet been validated for coronavirus testing. And the details matter.

Most people infected with the novel coronavirus develop antibodies in response.

But scientists don't know whether people who have been exposed to the coronavirus will be immune for life, as is usually the case for the measles, or if the disease will return again and again, like the common cold.

The Food and Drug Administration is stiffening its rules to counteract what some have called a Wild West of antibody testing for the coronavirus.

These tests are designed to identify people who have been previously exposed to the virus. The FDA said more than 250 developers have been bringing products to the market in the past few weeks.

Dozens of blood tests are rapidly coming on the market to identify people who have been exposed to the coronavirus by checking for antibodies against it.

The Food and Drug Administration doesn't set standards for these kinds of tests, but even those that meet the government's informal standard may produce many false answers and provide false assurances. The imperfect results could be a big disappointment to people who are looking toward these tests to help them return to something resembling a normal life.

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In New York today, Democratic Gov. Andrew Cuomo shared this news. For the second day in a row, his state did not see a large rise in COVID-19 deaths.

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The nation's 15 days of social distancing are nearly over. And while many states have issued stay-at-home orders for much longer periods of time, new guidance from the White House coronavirus task force is due soon.

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The toll of the coronavirus pandemic is steep - hundreds of thousands of confirmed infections around the world, tens of thousands of lives lost.

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In the face of mixed messages and confusion about who can or should be tested for the coronavirus, the Centers for Disease Control and Prevention posted updated guidance for doctors on Sunday about when to test a patient.

The short answer is, if your doctor thinks a test is appropriate, he or she can request the test. But a request doesn't guarantee that you'll get one.

Confused? You're not alone.

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As the coronavirus spreads more widely around the globe, scientists are starting to use a powerful new tool: a blood test that identifies people who have previously been exposed to the virus. This kind of test is still under development in the United States, but it has been rolled out for use in Singapore and China.

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Tonight, President Trump tried to quell rising fears about the effects of the growing coronavirus outbreak.

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Despite worrisome new outbreaks in Iran, Italy and South Korea, the coronavirus disease called COVID-19 is not currently a pandemic, the World Health Organization said today.

In fact, there are some encouraging trends, especially in Hubei province, where most of the cases have been reported.

The epidemic there appears to have plateaued in late January and is continuing on a good trajectory. Dr. Bruce Aylward led a WHO trip to China with a scientific delegation that just concluded. On Sunday, he told reporters in Beijing that trend is real.

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Even though the coronavirus disease that has sickened tens of thousands of people in China is new to science, doctors have a pretty good idea about how to treat it. COVID-19, as it is now named, attacks the lungs. Doctors see similar symptoms from other diseases all the time, especially from serious cases of the flu.

Public health officials attempting to contain the new coronavirus are trying to figure out how easily it spreads. One key question is whether people who are infected but show no symptoms can infect other people.

"If you have a lot of people who [have mild disease or are] asymptomatic and not seeking medical care for respiratory illness but are still contagious, you're going to have a very difficult time," says Jeffrey Shaman, a professor of environmental health sciences at Columbia University.

Updated at 5:01 p.m. ET

Last week, we asked our audience to share questions they might have about Wuhan coronavirus, the new respiratory virus that was identified in China.

While there is a lot we don't know about the virus — how the disease first emerged, for example — there are things that we do know.

China has reported a large surge of cases of the novel coronavirus — upping its count from under 3,000 to over 4,500 as of Tuesday morning. More than 100 deaths have been reported. It is spreading rapidly in many provinces, and sporadic cases have now been reported in 18 other locations outside of China, including Australia, France and Canada.

Hope for an effective and inexpensive treatment for the deadly condition sepsis has dimmed following results of a major new study.

Researchers had hoped that a simple treatment involving infusions of vitamin C, vitamin B1 and steroids would work against a disease that kills an estimated 270,000 people each year in the United States and 11 million globally. Sepsis, or blood poisoning, occurs when the body overreacts to infection. It leads to leaky blood vessels, which can cause multiple organ failure.

A medical condition that often escapes public notice may be involved in 20% of deaths worldwide, according to a new study.

The disease is sepsis — sometimes called blood poisoning. It arises when the body overreacts to an infection. Blood vessels throughout the body become leaky, triggering multiple-organ failure.

Cancer death rates in the United States took their sharpest drop on record between 2016 and 2017, according to an analysis by the American Cancer Society.

Cancer death rates in the U.S. have been falling gradually for about three decades, typically about 1.5% a year. But during the latest study period, the cancer mortality rate dropped 2.2%, "the biggest single-year drop ever," says Rebecca Siegel, scientific director for surveillance research at the cancer society.

Alexa Kasdan had a cold and a sore throat.

The 40-year-old public policy consultant from Brooklyn, N.Y., didn't want her upcoming vacation trip ruined by strep throat. So after it had lingered for more than a week, she decided to get it checked out.

Kasdan visited her primary care physician, Roya Fathollahi, at Manhattan Specialty Care, just off Park Avenue South and not far from tony Gramercy Park.

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