How To Tell If You Are Having A Stroke

How To Tell If You Are Having A Stroke – An overview of concepts related to various health problems. Many Covid-19 patients report a different set of symptoms. Zac Freeland Getty Images

What are the symptoms that you are infected with the coronavirus? This is a surprising question to answer, and it hinders the fight against the disease.

How To Tell If You Are Having A Stroke

The Centers for Disease Control and Prevention updated its guidelines in late April to include a new loss of taste or smell as a symptom of Covid-19, along with symptoms such as chills, recurrent chills, muscle pain, sore throat, and headache. . These are considered normal in addition to fever, cough, and shortness of breath.

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Some patients infected with SARS-CoV-2, the virus that causes Covid-19, have developed symptoms such as vomiting, rashes, and sores on the fingers. Some people’s Covid-19 symptoms overlap with other illnesses such as the flu, making these infections difficult to recognize without a test. And some infected patients did not show any symptoms.

Professor Andrew Chan said, “As this pandemic unfolds, it is becoming clearer that the symptoms of Covid vary from person to person, and many symptoms that we previously underestimated are associated with Covid.” of immunology and infectious disease at the Harvard School of Public Health TH Chan. “As a result, this really hinders our ability to identify people with Covid infection, and could result in a lot of people walking around with Covid and not knowing it.”

This makes responding to the crisis increasingly frustrating and complicated for health officials, especially in the United States, where tests for the virus remain difficult to obtain. Symptoms are a psychological symptom of the disease, and in a pinch can serve as a proxy for testing. Many hospitals are telling patients with Covid-19 symptoms to assume they have the virus and self-isolate, even without testing to confirm the presence of the virus.

A set of symptoms can highlight an emerging hotspot for the virus in a population. But without a clear picture of what Covid-19 looks like, it’s hard to even estimate the true extent of the pandemic. And without understanding what to look for, it’s difficult for healthcare workers to take the right precautions and offer the right treatments to their patients.

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As a result, many communities have had to resort to counterproductive, ineffective and disruptive measures to contain the pandemic, such as shelter-in-place orders. Relaxing these restrictions will require a major effort to prepare the public for the virus, track movements, and build health care capacity with beds, ventilators, masks, and workers. However, there are parts of the United States that are also removing these crude measures to limit the spread of Covid-19.

In addition, researchers are finding new ways to track the virus, going back to patient records to see what symptoms are associated with the disease. They also ask people to report their symptoms and track them using a mobile app. They found that some mild, easy-to-disappear symptoms could actually be signs of illness. This knowledge could help slow the pandemic and reveal new strategies for fighting the virus.

Most of the guidelines for Covid-19 symptoms are based on what scientists have learned from past cases, especially in China, where the virus appeared in January and February and spread quickly. For example, the World Health Organization has confirmed more than 55,000 cases of Covid-19 in China. They found that the most common symptoms in February were fever (87.9 percent of confirmed cases) and dry cough (67.7 percent) — followed by fatigue (38.1 percent), sputum production (33 percent, 4), shortness of breath (18.6 percent ). ), sore throat (13.9 percent), and headache (13.6 percent).

But the patients they’re looking at aren’t necessarily representative of everyone with the virus out there – just those who have been tested and treated. In the study, 80 percent of patients had mild to moderate pain, 13.8 percent had severe pain, and 6.1 percent were in critical condition.

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It is likely that many infected patients with very few or no symptoms were missed by the study, which means that their symptoms (or lack thereof) were underestimated in those statistics.

Other studies have shown that symptoms such as gastrointestinal problems can indicate the disease. A preliminary, peer-reviewed study of 204 patients in China found that more than half experienced symptoms such as diarrhea, vomiting, and abdominal pain.

Another preliminary study, this time from Germany, found that some Covid-19 patients had symptoms more similar to those of the common cold, such as a runny nose. Researchers in Italy also reported that feelings of discomfort and pain are associated with Covid-19. And doctors in the United States have noticed neurological symptoms such as confusion and seizures in some Covid-19 patients, especially the elderly.

Vague and sometimes contradictory symptoms may reflect how the virus interacts with underlying conditions in some patients, such as diabetes and high blood pressure, or simply differences in risk. This is a similar phenomenon that doctors have seen before with other infections.

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“For example, for the flu, most people will have fever, body aches and malaise. But a smaller proportion of people will have diarrhea and vomiting,” said David Pride, associate director of microbiology at University of California San Diego, in an email. “What we’re facing with Covid-19 is probably just mirroring what we see with many other diseases that affect a group of people in different ways.”

There is also a large range in how severe Covid-19 is, even within certain subgroups. There are elderly patients who have survived the virus. Some children died because of it.

Many of these less common symptom reports still require extensive validation before they can be used as clinical guidelines. But they underscore how complicated it is for patients and doctors to track Covid-19 without adequate testing.

Before the CDC guidelines were changed, there were rumors that anosmia, the loss of smell, and ageusia, the loss of taste, could indicate a Covid-19 infection. Utah Jazz player Rudy Gobert, who tested positive for the virus, said on Twitter that it was one of his most prominent symptoms. The son of UK sports broadcaster Gary Lineker poured vinegar and lemon juice on Instagram to show his loss of taste after contracting Covid-19.

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Doctors told the British Rhinological Society in March that they had seen “a rapid number of reports of a significant increase in the number of patients presenting with anosmia in the absence of other symptoms.” Writing in the BMJ, researchers at the University of Newcastle said, “[There is] enough evidence now to take this symptom more seriously.”

Researchers in the United Kingdom and the United States recently reinforced that idea with data. Using the Covid symptom tracking app for smartphones launched on March 24, scientists collected daily reports from more than 2.6 million users (2.45 million in the UK and 168,000 in the US) of their symptoms or deficiencies this. In a May 11 paper in the journal Nature Medicine, they found that a certain loss of taste or smell has a strong correlation with a positive test for Covid-19.

“The strongest association between any of those symptoms and a positive test is the loss of smell or taste,” said Tim Spector, a professor of molecular epidemiology at King’s College London who conducted the study with Andrew Chan of Harvard.

In the study, 7,178 app users reported testing positive for Covid-19. And 65 percent of them said they lost their sense of smell or taste. That’s a higher percentage of app users who tested positive for Covid-19 who reported a fever or other symptoms.

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The possible mechanism here is related to how the SARS-CoV-2 virus works. Researchers in the US and UK reported in a preliminary study that the virus attacks olfactory cells in the nasal passages in both mice and humans. The researchers wrote that this “may cause anosmia or other forms of anxiety.”

Not tasting your coffee or smelling like wildflowers are sure signs of Covid-19, Spector warns. Loss of taste and smell is associated with other respiratory tract infections as well as some allergies. In most cases, the loss of these feelings is not permanent.

So Spector’s team used data from their app to build a model of which combination of symptoms was most closely associated with a positive test for the virus instead of examining each individual symptom.

Using the model, Spector and his team calculated that among the 800,000 app users who showed up but did not get a complete Covid-19 test, 140,000 percent, or 17.5 percent, were likely infected with the virus. virus

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“As this pandemic unfolds, it is becoming increasingly clear that the symptoms of Covid vary greatly from person to person.”

In areas that lack adequate testing, Spector said this type of symptom monitoring could serve as an early warning sign of a rising wave of Covid-19 — and allow potentially infected people to take care.

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