bird flu

Table of Contents

References & Edit History Quick Facts & Related Topics

For Students

bird flu summary

Read Next

Hungry Pelican waiting to be fed, beak open, Australia

Why Don’t Birds Have Teeth?

Shoebill. A Shoebill Stork (Balaeniceps rex), aka 'Whalehead' standing in shallow marsh. Resides in tropical East Africa. A very large bird related to the storks. It derives its name from its massive shoe-shaped bill.

Funky Feathers: 10 Bizarre Birds

High Angle View Of Bird Dropping On Footpath

Why Is Bird Poop White?

Black-headed gulls perching on a roof with bird droppings, often seen in flocks around London, England, in winter time. The "black head" develops during the breeding season. (black headed, birds, guano, bird poop)

Magpie (Pica pica), perched on a log, bird

Eurasian Magpie: A True Bird Brain

Discover

Portrait of Marie Antoinette by Jean-Francois Janinet, 1777. Color etching and engraving with gold leaf printed on two sheets, 30x13.5 in.

Did Marie-Antoinette Really Say “Let Them Eat Cake”?

Ice Sledge Hockey, Hockey Canada Cup, USA (left) vs Canada, 2009. UBC Thunderbird Arena, Vancouver, BC, competition site for Olympic ice hockey and Paralympic ice sledge hockey. Vancouver 2010 Olympic and Paralympic Winter Games, Vancouver Olympics

10 Best Hockey Players of All Time

Computer mapping, woman at early 1990s computer

Timeline of the 1990s

Pregnancy. pregnancy and birth. Fertilization, Pregnancy, and Birth. Stages of nine month pregnant woman abdomen growth. Pregnant human female developing human within her. White pregnant female, developing fetus. mother

9 Bizarre Myths About Pregnancy

Monitor. Varanus salvadorii is a monitor lizard found in New Guinea can grows to 2.7 metres (9 ft.) aka Tree crocodile, Crocodile monitor, Salvadori's monitor, artellia, reptile

7 of the World’s Most Dangerous Lizards and Turtles

American bison (Bison bison) also known as buffalo or plains buffalo on the prairie, western U.S.

What’s the Difference Between Bison and Buffalo?

Hemp (Cannabis sativa).

9 Mind-Altering Plants

bird flu: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

News •

Staff exodus at US farm agency leaves fewer experts to battle bird flu • May 12, 2025, 10:04 AM ET (Reuters)

Stanhope bird flu protection zone lifted • May 7, 2025, 5:11 AM ET (BBC)

Bird flu in cows shows no signs of adapting to humans — yet • Apr. 28, 2025, 9:30 AM ET (Science News)

Avian flu cull order for B.C. ostrich farm to be reviewed in court today • Apr. 15, 2025, 6:54 AM ET (CBC)

Facts

Also Known As	avian influenza

Topics

fowl plague bird influenza type A virus H5N1 virus poultry disease AIDS malaria polio tuberculosis plague Ebola influenza smallpox hepatitis yellow fever

Key People

Chan, Margaret

Margaret Chan

Chinese civil servant

Quiz

44 Questions from Britannica’s Most Popular Health and Medicine Quizzes