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Update (March 11):The World Health Organization (WHO) has officially improved coronavirus to a "pandemic":

The original article of 9 March appears as follows:

It looks likeCoronavirus is now called a pandemic by several points of sale around the world, including CNN andNew scientist. The World Health Organization (WHO) refrains from the use of the word "pandemic" with reference to coronaviruses. In a media briefing on Monday,Tedros Adhanom Ghebreyesus, PhD, MSC, Director General of WHO, said: "Now that the virus has set foot in many countries, theThe threat of a pandemic has become very real." SinceCoronavirus will probably continue to spread In the coming weeks and months, do not dissipate, it's almost a certainty that if it's notalready Considered a pandemic, it is only a matter of time.

So, what is the difference between an epidemic, an epidemic and a pandemic? As chief correspondent of CNNSanjay Gupta, MD, explained during his appearance on CNNNew dayOn Monday, March 9, this comes up to the following:

What is an epidemic?

According to Merriam-Webster: "aepidemic is a localized sudden impact of a disease. An "epidemic" can become aepidemic If propagation becomes more severe, infecting more people on a wider area. Finally, if the disease continues to spread uncontrolled, it can become apandemicWhen the epidemic has become widespread on large geographical areas and has infected a very large number of individuals. "

What is an epidemic?

According to whom, aThe epidemic is defined as: "The occurrence in a community or case region of a disease, a specific behavior related to health or other health-related events is clearly superior to normal expectation. The community or region and the period in which cases occur are specifically specified. The number of cases indicating that the presence of an epidemic varies depending on the agent, the size and type of exposed population, an earlier experience or a lack of Exposure to the disease, as well as the time and place of occurrence. "

What is a pandemic?

According to Gupta, a pandemic must meet these three qualifications:

• Virus that can cause an illness or death
• Transmission suffered from people to anyone
• Spread throughout the world

Gupta saidNew daythat he suspects who tries to find a "balance betweennot wanting to cause panic And trying to look at the data, but when we look at these numbers now and that we look at what's going on in the world, it's important, I think a pandemic to call [coronavirus]. "

In a CNN position, Gupta Point explains that he "spent the last days talking to the leaders of public health, epidemiologists and clinicians of terminology. While some were naturally conservative,Everyone agreed that we are now in a pandemic. "

Tom Frieden, MD, former Director of Disease and Prevention Centers (CDC) and Current President and Chief Executive Officer ofSolve to save lives, "said Gupta," It has been clear for several weeks that it would become a pandemic and it has now ... Each community of each country must prepare in order to reduce both health and societal consequences. Some pandemics. are just light or moderate, and it's still not sure how serious it will be. "