Saturday, November 27

Why mosquitoes are the deadliest species on the planet


The vast majority of mosquitoes do not transmit disease.

Foto:
Jimmy Chan / Pexels

The mosquito, It is a tiny insect that, with its long and thin legs, perches on our skin to draw our blood.

In the best of cases, it leaves us with an inflammation accompanied by itching; At worst, transmits diseases that can be fatal.

We know that they are everywhere and, although many times we cannot see them, that sound they produce with their transparent wings, similar to that of a trumpet, can drive more than one crazy.

To get to know this little enemy well, here are 6 facts that you may not know about the mosquito.

1. A whole regiment

In the world there are more than 2,500 species of mosquitoes that, in the breeding seasons outnumber – after termites and ants – any otheramembers of the fauna of the planet.

Such is the concentration of these insects in the breeding season that, according to Bill Gates’ blog, in some cases they can change population patterns.

“In many malaria areas, the disease causes people to go inland, away from the coast, where the climate is more suitable for mosquitoes,” read there.

2. More dangerous than man

The mosquito represents a threat to half of the planet’s population.

World Health Organization (WHO) estimates that each year about 725,000 people die by cause of diseases transmitted by these insects.

And, according to data from the Bill Gates Foundation, man is the cause of 475,000 deaths a year.

But it’s not just about the deaths, mosquito-borne diseases – such as malaria, dengue, la chikungunya o el zika– can temporarily incapacitate hundreds of millions of people.

3. Not all species, nor both sexes

Although more than 2,500 species of mosquitoes are known in the world, most of them do not bother humans at all: they live on plants and fruit nectar.

Son sohthe females of 6% of the species –As the Aedes aegypti and the Aedes albopictus– those that suck human blooda Y of animals for the development of their eggs.

4. It’s not a needle, it’s 6

At first glance it seems simple, the mosquito introduces its proboscis, that elongated and tubular appendage on the head of the mosquito, on our skin.

But appearances can be deceiving what he keeps inside that trunk is not one, but 6 needles.

Two of them have small teeth to penetrate the skin; two others serve as tweezers to keep the skin separated; and a needle detects our veins and sucks our blood.

And the sixth is to leave toxins in the body, which is what causes inflammation and itching.

5. Blood comes in and water comes out

As the female mosquito sucks the blood, it removes the excess blood from behind.

It’s like you’re squeezing it to get the most nutrients for your eggs.

According to the magazine National GeographicOn average, these insects can spend about four minutes sucking on our liquid.

“They suck so hard that the blood vessels begin to collapse”, read in the article.

“Some of the vessels break and spread the blood in the surroundings”; and when this happens, the mosquito takes advantage of it and takes it directly from the well it created.

6. What about diseases?

Mosquito
Mosquitoes contribute to more than 725,000 deaths a year. (Photo: Getty Images)

Not all female mosquitoes transmit the viruses and parasites that make us sick.

Those that transmit yellow fever, malaria, dengue and other disorders, they do it once they have satiatedO his thirst for blood.

Just before leaving, they leave us the virus or the parasite with their saliva as a gift.

This is what makes us sick and can even kill.

The virus or parasite does not really affect the insect; they only use the mosquito as transport.

You are interested in:

5 homemade repellants to fight mosquitoes

How is the Zika virus transmitted and what are its symptoms?


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