Why Do Bats Carry So Many Diseases? (like Coronavirus)

TL;DR

Bats carry numerous deadly viruses that have caused deadly outbreaks in humans, often due to human encroachment on bat habitats.

Transcript

Nipah. Hendra. Ebola. Marburg. SARS. These are some of the world’s scariest viruses. Hemorrhagic fevers like Ebola are extremely fatal – they kill up to 90 percent of people infected – while SARS, a coronavirus, has a lower mortality rate but spreads incredibly rapidly. All of these nasty pathogens have surfaced in humans in just the last 50 years,... Read More

Key Insights

• 🥺 Human encroachment into bat habitats has led to the spread of deadly viruses to humans.
• 🛀 Bats living in large roosts facilitate the transmission of viruses between species.
• 🚄 Flight has made bats resilient to infections and trained viruses to tolerate higher temperatures, making them potentially more dangerous to humans.
• 🎮 Bats play important ecological roles, such as controlling insects and pollinating plants.
• 😃 Humans are, statistically, the biggest carriers of human diseases.

Questions & Answers

Q: Why have there been so many deadly virus outbreaks in humans in the last 50 years?

The rise in outbreaks is likely due to human encroachment into bat habitats, bringing humans into contact with bats carrying deadly viruses.

Q: What are some of the deadly viruses carried by bats?

Bats carry viruses like Nipah, Hendra, Ebola, Marburg, and SARS, which have high mortality rates in humans.

Q: How do bats facilitate the spread of viruses between species?

Bats roost in large numbers and close quarters, allowing viruses to spread not only between individuals but also between different bat species.

Q: Why are bats able to survive infections from the deadly viruses they carry?

Flight may be the reason bats are resilient to infection, as they have evolved specialized cells and DNA repair mechanisms to counteract the reactive waste products produced during flight.

Summary & Key Takeaways

• Bats carry deadly viruses like Nipah, Hendra, Ebola, Marburg, and SARS, which have caused outbreaks in humans in the last 50 years.

• Human encroachment into bat habitats, especially in the tropics, has led to the spread of these viruses to humans.

• Bats live in large roosts, facilitating the spread of viruses between species, and flight helps bats survive infections.