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classes of antibodies

Why do people have allergies in the spring?

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An ancient egyptian hieroglyphic painted carving showing the falcon headed god Horus seated on a throne and holding a golden fly whisk. Before him are the Pharoah Seti and the goddess Isis. Interior wall of the temple to Osiris at Abydos, Egypt.

11 Egyptian Gods and Goddesses

Demystified - Do Lemmings Really Commit Mass Suicide? illustration

Do Lemmings Really Commit Mass Suicide?

Town of Sisimiut located on the coast of the Davis Strait on Kangerluarsunnguaq Bay, Greenland

The Largest Islands in the World

The Battle of New Orleans, by E. Percy Moran, c. 1910. Andrew Jackson, War of 1812.

26 Decade-Defining Events in U.S. History

Young boys working in a thread spinning mill in Macon, Georgia, 1909. Boys are so small they have to climb onto the spinning frame to reach and fix broken threads and put back empty bobbins. Child labor. Industrial revolution

The Rise of the Machines: Pros and Cons of the Industrial Revolution

Cathedrale St.Jean in Lyon, France has a 14th-century astronomical clock that shows religious feast days till the year 2019; Perpetual Calendar

Ten Days That Vanished: The Switch to the Gregorian Calendar

World Data Locator Map: Australia

Is Australia an Island?

IgE: Media

biochemistry

Videos

Why do people have allergies in the spring?

Why do people have allergies in the spring?

Learn what allergies are and what causes them.

Video: © American Chemical Society (A Britannica Publishing Partner)

Images

anaphylaxis

anaphylaxis

Systemic anaphylactic response to bee venom in an individual with type I hypersensitivity....

Encyclopædia Britannica, Inc.

classes of antibodies

classes of antibodies

The five main classes of antibodies (immunoglobulins): IgG, IgA, IgD, IgE, and IgM.

Encyclopædia Britannica, Inc.