Recently, more and more people ask the same question: is COVID-19 virus like the flu? The answer is NO. Compare to the seasonal flu, the Covid-19 is more contagious, more deadly, especially for old people. while the exact death rate is not clear yet. most research shows that it might be higher than that of the seasonal flu.
The symptoms of typical include fever, cough, sore throat, muscle aches, headaches, runny or stuffy nose, fatigue. Sometimes, people will be vomiting and diarrhea too. Flu symptoms often appear suddenly, and most people will recover from it within two weeks. On COVID-19, known symptoms include fever, cough, and shortness of breath, and sometimes the patient just feels like he got the flu. But doctors are still trying to understand the full picture of its disease symptoms and severity.
Basic reproduction number or “R0”, which is an estimate of the average number of people who catch the virus from a single infected person, is widely used to determine how easily a virus spreads. The flu has an R0 value of about 1.3. Although the R0 for COVID-19 are still not determined by researchers, recent studies estimated an R0 value for COVID-19 might be 2-3, which means one infected person can spread the virus to about 2 to 3 person.
Also, it takes 14 days for people with Covid-19 infection to develop symptoms, with five days as the median. But for the flu, it only takes around two days. That means before people know they are sick, they might have more time to spread the virus symptomatically. That’s why we ask close contacts to be observed for 14 days.
COVID-19 virus leaped from animals to humans for the very first time, and none of us has any natural immunity to it. There is neither vaccine that can combat it right now, nor any approved therapeutics can slow its damage on a human.
Where did the COVID-19 virus come? How will it play out? Lots of uncertainties over the virus are threatening us very seriously. The most effective way to prevent and control the virus outbreak is early detection, early reporting, early diagnosis, early isolation, and early treatment. It’s in the first place that the confirmed cases to get an effective isolation treatment to decrease transmission.