On the left: a colored electron micrograph image of influenza virus. On the right: Color-enhanced electron micrograph image of SARS-CoV particles-2 viruses, isolated from patients.
On the left: a colored electron micrograph image of influenza virus. On the right:. Color-enhanced electron micrograph image of SARS-CoV particles-2 viruses, isolated from patients inevitable comparisons
The fact that the new coronavirus appeared in the middle of flu season has been requested. Do COVID-19, a disease caused by a virus, is pretty much similar to the flu or not pose a threat far greater?
Although there are still many unknowns about COVID-19, there are some solid information from researchers shed light on some of the similarities and differences at the moment.
fever, dry cough, fatigue and shortness of breath. It is the most common symptom COVID-19. Some patients may develop aches and pains; only 5% get colds, according to – show that COVID-19 is usually not an upper respiratory infection.
These are all symptoms. The Centers for Disease Control says that anyone who experience these symptoms and who have been in direct contact with a confirmed COVID-19 patients, or who live in areas where cases outstanding, should advice.
Flu and coronavirus are both thought to be the spread mainly through close contact with droplets expelled from the nose and mouth of a sick person. So you can be infected through direct contact such as the CDC recommends keeping a physical distance of about six feet from other people. You can also take the flu or a coronavirus if you touch a table or a phone with a cough, but not disinfected, in recent years, and then touching your eyes, nose or mouth.
Data from China shows that every case coronavirus appears to infect about 2 to 2.5 additional people. That’s higher than the flu. The average patient flu virus spreading around.
The new research shows that a higher number of infections per patient coronavirus may be associated with presymptomatic transmission frequency – when people who have been infected but not showing symptoms can actually be contagious. Analysis of data from the China case is most likely caused by the coronavirus spread before they start coughing and feel sore.
Instead, the most contagious flu in three or four days after symptoms begin, according to, and presymptomatic transmission main driver of new cases.
It is also possible that the coronavirus can be transmitted by other methods. Researchers are trying to determine, for example, if the tiny droplets can remain in the air in infectious dose, or if the stool can be a source of infection.
The degree of mild versus severe cases
80% of cases of coronavirus – which range from having a fever and cough low grade pneumonia. It may still be miserable, but you can heal on your couch at home.
Data from China showed that 20% of COVID-19 patients, though, is serious enough to be sent to hospital. That’s about ten times more often. Although many people are hospitalized for flu – the initial data for the 2018-19 flu season almost – hospitalization rate is much lower: percent of cases, according to the CDC.
To coronavirus, “what is particularly concerning is the number of people who come forward to care needs hospital level and then the eventual treatment of critical and die, especially at the age of extremes [old],” said, an epidemiologist at University of Texas at Austin Dell Medical School
People who are over 60 and who have other health problems are more at risk of severe disease and hospitalized -. for both COVID-19 and flu.
The length of hospitalization
Once a patient with a serious case of coronavirus hospitalized, the average stay was 11 days, according to January data from Wuhan – about two times for 5 -untuk- 6-day average stay flu.
days of additional means extra pressure on the health care system. “For the intensive care of, really healthy people can often require a 2-3 medical staff at one time, all in protective gear, for hours,” said, director of the World Health Organization Emergency HealthProgram.
It was a great strain on nurses and doctors and our hospitals, and it overlaps with the flu season, which usually ends in May. From early October through the beginning of March, the CDC estimates that among people hospitalized with flu.
What percentage of the population will get each virus?
There are years of data that can answer that question for influenza. In the US, for example, in recent years around 8.3% of the total population get sick from the flu each season ,; including those that carry the flu virus but have no symptoms, which range forecasts for up to 20%.
No one knows what percentage of the population will eventually contract coronavirus. But there are some allegations. Since this is a new disease and no vaccine and no immunity was established from the cycle of the past, experts believe everyone is susceptible.
One of the researchers at the University of Hong Kong and Harvard, published in Nature Medicine, predicted that globally, “at least a quarter to a half of the population will very likely infected, control drastically missed steps or vaccine . “
a released March 16 from the Imperial College of London estimates where 81% of the US population could be infected over the next few months, if no action is taken to slow or contain the spread of the virus. Predictions from this model seems to be implementing social distancing measures to combat the spread of the virus.
In order to come up with better data for COVID-19 levels of infection, the researchers conducted blood tests in China to see how many people have been infected in a place where the epidemic appears to have been reduced through efforts such as lockdowns, tracking contacts and increase the capacity of the hospital.
The death rate
initial data show that the coronavirus is deadly. In the US, the seasonal flu kills people (0.1%) were sick of it – the death toll of more than 34,000 last season. Around the world, estimated to die from the flu each year.
Instead, COVID-19 is currently estimated to kill at least 10 people per thousand infected (1%). “It’s about ten times more deadly than seasonal flu,” said, director of the National Institutes of Allergy and Infectious Diseases, in congressional testimony on March 11.
More data are needed to assess COVID-19 levels of mortality, including detailed figures of how many cases with mild symptoms or no symptoms at all. So far, COVID-19 has killed about 10,000 people around the world how many people around the world – and about 200 in the infectious disease specialist US But it warned that, if spread coronavirus widespread in the US, the figure could rise rapidly < p. > “This does have the potential to be just as bad, if not worse, in terms of the overall number of deaths and cases of severe as seasonal flu,” said, a virologist at Columbia University.
Rest and supportive care is a common treatment for both and for cases of coronavirus that do not require hospitalization.
For the flu, which has been studied intensively, doctors have some additional tools to fight, say, a colleague of infectious diseases at Children’s Hospital of Pittsburgh of UPMC. A drug called Tamiflu aims to stop the flu virus themselves in the body and can reduce the severity of symptoms. Another excellent care of the body is in development.
There are no approved treatments for COVID-19 yet, although researchers race to see whether the pills for other diseases could work against coronavirus, and to develop specific therapies that will reduce the symptoms and recovery Hasten.
drug that is being evaluated in the United States, China and other countries. “It is likely that we will know whether they work in the months ahead,” said Dr. Fauci, NIAID director, in. Drugs that are considered include remdesevir, experimental drug was originally developed for Ebola, and anti-malarial called chloroquine ,.
For a vaccine that can prevent COVID-19, Dr Fauci said it would take at least one year to one and a half years for the vaccine to be available to the public. vaccine development requires human trials. “It will take three or four months to determine whether [selection of vaccine] is safe,” he said, and at least eight months to measure whether it is effective. US first vaccine clinical trial begins on Monday, announced.
modern flu vaccine was first developed and protected by US troopss against the flu during World War II. A new vaccine is developed each year to combat. This flu season, the CDC said that about 160-170 sent out -. enough to cover about half of the US population
The Impact of Seasonal Weather
While flu cases found, the flu is not reduced when. In the US, every flu season varies, but the number of cases of the new flu between December and February, and tails off with May.
The researchers think it has to do with how people spend more time outside when it’s warmer, and how a higher heat and humidity can cause multiple virus rot faster. They are also studying how the immune system might be and sun exposure.
But, WHO adviser, said do not count on the same pattern for COVID-19, which thrive in warm, tropical places: “It is roaring in Singapore It’s not flu season in Singapore .. this is roaring in the southern part of China . this is not the flu season. ”
The researchers will only know whether the following coronavirus flu patterns by looking at whether the infections dropped as the season changes. There is a possibility that it will not, so in the meantime, Aylward think hospitals should prepare as if COVID-19 is here to stay as a health threat throughout the year.
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