Fighting the World’s Deadliest Animal | Global Health (2024)

The small, long-legged insect that annoys, bites, and leaves you with an itchy welt is not just a nuisance―the mosquito is the world’s deadliest animal. Spreading diseases like malaria, dengue, West Nile, yellow fever, Zika, chikungunya, and lymphatic filariasis, the mosquito kills more people than any other creature in the world. CDC is committed to providing scientific leadership in fighting these diseases, at home and around the world.

The most common mosquito-borne disease in the continental United States is West Nile virus (WNV). On average, there are 2,400 reported cases each year. The largest WNV outbreak in the United States occurred in 2021 in Maricopa County, Arizona, sickening 1,715 people, including 125 deaths.

Dengue outbreaks occur in many countries around the world, including in the Americas, Africa, the Middle East, Asia, and the Pacific Islands. Many of these countries are popular destinations for U.S. travelers. In 2019, the United States saw the highest number of travel-associated dengue cases since reporting began in 2010. Additionally, dengue is common in some areas of the United States, such as Puerto Rico and the U.S. Virgin Islands.

Another mosquito-borne disease that occurs in tropical and subtropical areas is chikungunya. In 2023, Paraguay experienced a significant outbreak of this mosquito-borne disease, which can cause long-term joint issues and poses a serious threat to young infants and older adults. More than 115,000 cases have been reported since the outbreak began. Travelers have been infected both in Paraguay and in other countries in the region where the outbreak has spread.

Lymphatic filariasis (LF) is a parasitic disease transmitted through repeated mosquito bites over a period of months. Globally, the World Health Organization estimates that at least 51 million people in 44 countries are infected with LF.

In 2021, 619,000 people died frommalaria, and over 247 million became ill across 84 countries. Nearly 3.2 billion people of the world’s population is at risk of this preventable disease.

Since 2000, CDC and partners have saved nearly 12 million lives and prevented over 2 billion malaria infections. CDC co-implements thePresident’s Malaria Initiativewith the U.S. Agency for International Development (USAID) in 24 African partner countries (with plans to expand to three more) and three programs in the Greater Mekong Subregion of Southeast Asia.

CDC helped eliminate malaria as a major public health problem in the United States in the early 1950s. However, in 2023, eight locally acquired, mosquito-transmitted cases of Plasmodium vivax malaria occurred in Florida and Texas for the first time in 20 years. In response to these cases, CDC collaborated with state and local health officials in the two states to provide technical assistance, mosquito testing, human specimen reference testing, and to develop a response plan outlining recommended actions and surveillance efforts. CDC continues to educate clinicians on diagnosis and treatment of malaria and share information with providers, laboratorians, public health authorities, policymakers, and the public through a variety of trainings, tools, and fact sheets.

Today, CDC works to eliminate the global burden of malaria and other mosquito-borne diseases. From conductingresearchto developingtoolsandapproachesto better prevent, detect, and control mosquito-borne diseases, to mitigating drug and insecticide resistance, toaccelerating progress towards disease elimination, CDC scientists are working around the world to protect people from mosquito-borne diseases.

Fighting the World’s Deadliest Animal | Global Health (2)

CDC entomologist Dr. Sarah Zohdy in Dire Dawa, Ethiopia conducting larval dips in April 2023. The team was checking for mosquito larvae to verify if the insecticide interventions to control mosquito larvae, or larviciding, for Anopheles stephensi in the area were successful. Photo credit: Meera Venkatesan, USAID

Fighting the World’s Deadliest Animal | Global Health (2024)

FAQs

What is the central idea of the article which animal is the deadliest? ›

The answer might surprise you. A nonfiction article examines the threat mosquitoes pose to human health, mostly through the spread of malaria, while an infographic presents the much-loathed creatures in a more positive light.

What is the deadliest animal in the world Gates notes? ›

By far, mosquitoes are the deadliest animal on earth. Mosquitoes carrying malaria kill a child every minute. Human-on-human deaths are killer. In 2015, homicides made up around 409,000 deaths, war approximately 172,000 deaths.

What is the deadliest animal in the world? ›

Spreading diseases like malaria, dengue, West Nile, yellow fever, Zika, chikungunya, and lymphatic filariasis, the mosquito kills more people than any other creature in the world.

What animal is the biggest killer of humans? ›

Mosquitos

What is the main idea of the article the rights of animals? ›

Animal rights is the philosophy according to which many or all sentient animals have moral worth independent of their utility to humans, and that their most basic interests—such as avoiding suffering—should be afforded the same consideration as similar interests of human beings.

What is the main idea of the article can animals think? ›

(Delete answer before printing) The writer of the article thinks that animals demonstrate more intelligence than most people give them credit for. He also explores the idea that animals will apply their intelligence to serve their own purposes, not to please a scientist.

What kills the most humans every year? ›

This includes cardiovascular diseases, cancer, and chronic respiratory diseases. They tend to develop gradually over time and aren't infectious themselves. Heart diseases were the most common cause, responsible for a third of all deaths globally. Cancers were in second, causing almost one-in-five deaths.

What is the 7th deadliest animal in the world? ›

(Tie) 7.

The assassin bug transmits a dangerous parasite through its feces. The parasite, which causes a condition known as Chagas disease, immediately unleashes acute symptoms which can include severe swelling of the heart or brain. This deadly phase of Chagas disease causes around 10,000 fatalities annually.

What animal in Africa kills the most humans? ›

#1: Mosquito

It kills more people than all the other animals on this list combined. Mosquitoes carry diseases that kill more than 1 million people each year. These diseases include Malaria, Dengue Fever, and Yellow Fever. Malaria alone kills more than 3,000 African children each day.

What is the cutest animal in the world? ›

10 Cutest Animals In The World
  • Fennec Fox. Algeria's national animal, the Fennec fox, is famous for its cuteness. ...
  • Munchkin Cats. The Munchkin cat is among the table toppers of cutest animals. ...
  • Red Panda. ...
  • Penguin. ...
  • Otter. ...
  • Baby Elephant. ...
  • Koala. ...
  • Meerkat.

What animal carries the most diseases? ›

Mosquitoes, ticks, and fleas are among the arthropods responsible for transmitting many of the myriad bacteria, viruses, and parasites that cause vectorborne diseases―as are some mammals. In terms of infectious disease transmission, mosquitoes are considered the most dangerous animals on earth.

Which animal has the strongest muscle? ›

The strongest animal in the world is the African bush elephant, which is capable of lifting 6,000kg, its own body weight from lying down. Even their trunks can lift over 200kg, thanks to over 40,000 muscles. For context, an adult humans have just over 600 muscles in their entire bodies.

What animal lives the longest? ›

Glass sponges are considered the oldest animals on Earth—and it's by a long shot. Scientists estimate that they can live for more than 10,000 years, possibly 15,000 years maximum. One glass sponge observed by researchers in the Ross Sea, a bay of Antarctica, is thought to be the oldest living animal on the planet.

What animal kills the most humans last year? ›

While larger animals like sharks or hippos may seem a likely culprit, the animal that kills the most humans per year is actually the mosquito.

What animal kills the least humans? ›

Here are the top 10 most harmless animals in the world.
  • Llama. Llamas (Lama Glama) are related to camels. ...
  • Manatee. The manatee (Trichechus) is an herbivore that is not aggressive and doesn't prey on other species. ...
  • Red Panda. ...
  • Manta Ray. ...
  • Giant African Millipede. ...
  • Opossum. ...
  • 3. Aye-Aye. ...
  • Rabbit.
Jan 5, 2022

Which animal is the deadliest and the extraordinary powers of the tiny mosquito? ›

Rather, the deadliest animal is the tiny mosquito. That's mostly because of malaria. Mosquitoes spread the blood-borne disease, killing about 445,000 people per year. That figure doesn't even include deaths from dengue fever, yellow fever, Zika or West Nile viruses.

What is the argument against animal rights? ›

Some argue that since animals don't behave in a moral way they don't deserve moral treatment from other beings. Animals, it's argued, usually behave selfishly, and look after their own interests, while human beings will often help other people, even if doing so is to their own disadvantage.

What is the best argument for animal rights? ›

Supporters of animal rights believe that animals have an inherent worth—a value completely separate from their usefulness to humans. We believe that every creature with a will to live has a right to live free from pain and suffering.

What is the argument against using animals in research? ›

Yet animals' rights are violated when they are used in research because they are not given a choice. Animals are subjected to tests that are often painful or cause permanent damage or death, and they are never given the option of not participating in the experiment.

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