How many people have been affected by dengue?

How many people have been affected by dengue?

Almost half of the world’s population, about 4 billion people, live in areas with a risk of dengue. Dengue is often a leading cause of illness in areas with risk. Each year, up to 400 million people get infected with dengue. Approximately 100 million people get sick from infection, and 40,000 die from severe dengue.

How many deaths has dengue caused?

The number of dengue cases reported to WHO increased over 8 fold over the last two decades, from 505,430 cases in 2000, to over 2.4 million in 2010, and 5.2 million in 2019. Reported deaths between the year 2000 and 2015 increased from 960 to 4032.

Was the dengue virus a pandemic?

The first recognized dengue epidemics occurred almost simultaneously in Asia, Africa, and North America in the 1780s, shortly after the identification and naming of the disease in 1779. A pandemic began in Southeast Asia in the 1950s, and by 1975 DHF had become a leading cause of death among children in the region.

When was the last dengue outbreak?

Nearly all dengue cases reported in the 48 contiguous US states were in travelers infected elsewhere. In the United States, local dengue outbreaks most recently occurred in Hawaii (2015), Florida (2013, 2020), and Texas (2013).

Can a person suffer from dengue twice?

Yes, dengue can strike you again and again. You can get infected with dengue not once, twice but multiple times, with each subsequent infection being deadlier than the ones before.

Which country has the highest incidence of dengue fever?

The five countries reporting most cases are: Brazil (813 881), Peru (35 699), Nicaragua (29 165), Colombia (25 388), and Mexico (20 286). This is an increase of 77 465 cases and 40 deaths since 27 August 2021.

Do all mosquitoes cause dengue?

Foremost, you need to bust the dengue myth that every mosquito bite will cause dengue. Only the female Aedes aegypti mosquitoes can spread the dengue virus and in fact, these mosquitoes can transfer the infection only when they themselves are infected. So, no need to panic after each mosquito bite.

How did dengue start?

When a mosquito bites a person infected with a dengue virus, the virus enters the mosquito. Then, when the infected mosquito bites another person, the virus enters that person’s bloodstream and causes an infection.

Where did dengue virus originate?

Where did the dengue viruses first come from? Scientists hypothesize that the dengue viruses evolved in nonhuman primates and jumped from these primates to humans in Africa or Southeast Asia between 500 and 1,000 years ago. The distribution of dengue serotypes in 1970 (a) and 2004 (b).

When did dengue first appear?

Outbreaks of febrile illnesses compatible with dengue fever have been recorded throughout history, with the first epidemic described in 1635 in the West Indies. In 1779-1780, the first confirmed, reported outbreak of dengue fever occurred almost simultaneously in Asia, North America, and Africa.