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ID#:14763
Description:This is an image that was donated to the Centers for Disease Control (CDC), by Dr. Cornelius B. Philip of the U.S. Public Health Service, at the National Institute of Allergy and Infectious Diseases’ (NIAID) Rocky Mountain Laboratories (RML) in 1965. It depicts an adult and a larval chigger poised on the head of a pin.
Chiggers, or mites, are tiny, six-legged wingless organisms (larvae) that grow up to become a type of mite. Chiggers are found in tall grass and weeds. Their bite causes severe itching, and is caused by the host’s immune system reacting to the digestive enzymes produced by the larval mites as they feed on the host’s epidermal cells.

In the Asia-Pacific region from maritime Russia and China to Indonesia and North Australia to Afghanistan, chiggers have been found to transmit the arboviral Rickettsial disease known as scrub typhus, which is caused by the bacterium, Orientia tsutsugamushi.

High Resolution: Click here for hi-resolution image (6.08 MB)
Content Providers(s):Dr. Cornelius B. Philip, National Institute of Allergy and Infectious Diseases (NIAID), Rocky Mountain Laboratories, RML
Creation Date:1965
Photo Credit:Dr. Cornelius B. Philip, National Institute of Allergy and Infectious Diseases (NIAID), Rocky Mountain Laboratories, RML
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.

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