Paris (AFP)

Before the new coronavirus, several major epidemics marked the start of the 21st century, but, despite the psychosis triggered by these new diseases, they were far less deadly than the major influenza pandemics of the 20th century.

The current epidemic has so far killed 259 people in mainland China for nearly 12,000 confirmed cases.

- Significant epidemics in the 21st century -

- 2013-2016: Ebola in West Africa

Result: 11,300 dead

Identified for the first time in 1976, this virus triggered, between the end of 2013 and 2016, an epidemic of hemorrhagic fever in Guinea, Sierra Leone and Liberia. Less contagious than other viral diseases, Ebola is formidable due to a very high case fatality rate (around 40%).

The virus re-emerged in August 2018 in eastern Democratic Republic of the Congo, where it has killed more than 2,200 to date.

- 2009-2010: influenza A (H1N1)

Balance sheet: 18,500 dead according to the official WHO balance sheet. But the medical journal The Lancet estimated the number of deaths between 151,700 and 575,400.

Appeared in Mexico at the end of March 2009, it was first named "swine" flu by the WHO. The pandemic alert was launched on June 11, 2009, but this A (H1N1) virus turned out to be much less deadly than feared.

Massive vaccination campaigns are hastily organized. After the fact, Western countries, in particular Europeans, and the World Health Organization (WHO) are criticized for a mobilization deemed oversized, whereas each year, the so-called seasonal flu kills between 250,000 and 500,000, according to the WHO. .

- 2002-2003: Sras

Result: 774 dead

Severe acute respiratory syndrome emerged at the end of 2002 in southern China, transmitted from the bat to humans by the civet, a wild mammal sold alive on Chinese markets for its meat. It is frighteningly contagious, causing acute pneumonia, sometimes fatal.

From spring 2003, it causes a real psychosis in Asia. SARS will ultimately affect around thirty countries, but with a limited toll, China and Hong Kong concentrating 80% of the victims, and a mortality rate of 9.5%.

- 2003-2004: avian flu

Balance sheet: 400 dead

At the origin of a global psychosis, avian influenza first ravages chicken farms in Hong Kong before being transmitted to humans. WHO declares "a public health emergency of global scope", but the results will remain very limited.

- The great pandemics in the 20th century -

- From 1981 to the present day: AIDS

Balance sheet: 32 million dead, according to UNAIDS

But today 24.5 million people have access to antiretroviral treatments which, when taken regularly, very effectively block the disease and greatly reduce the risk of contamination.

- 1968-1970: Hong Kong flu

Balance sheet: one million dead (figure quoted by the American body for the surveillance and prevention of CDC diseases).

She toured the world between summer 1968 and spring 1970, notably killing many children. Coming from Hong Kong, the virus first crossed Asia and then, at the end of 1968, the United States. After a few months of being discreet, the virus swept across Europe in late 1969.

For epidemiologists, this flu has gone down in history as the first pandemic of the modern era, that of rapid air transport.

- 1957-1958: Asian flu

Balance sheet: 1.1 million dead (figure cited by the CDC)

This pandemic struck in two virulent waves. The virus first appeared in a southern province of China in February 1957. It took several months before it reached America and Europe. The elderly were the first victims of this disease, which led to serious pulmonary complications.

- 1918-1919: Spanish flu

Balance sheet: up to 50 million dead (figure cited by the CDC)

The so-called "Spanish" flu, which raged between September 1918 and April 1919, is considered to be the most deadly in history in such a short period of time.

She killed five times more than the battles of the First World War. The virus makes its first documented victims in the United States, then spreads to Europe, then affects the whole world. Its mortality rate has been estimated at more than 2.5% (CDC).

© 2020 AFP