Scab may refer to:
Biology
* Scab, a hard coating on the skin formed during the
wound healing reconstruction phase
* scAb, single-chain
antibody
An antibody (Ab) or immunoglobulin (Ig) is a large, Y-shaped protein belonging to the immunoglobulin superfamily which is used by the immune system to identify and neutralize antigens such as pathogenic bacteria, bacteria and viruses, includin ...
fragment
Infections and infestations
*
Apple scab
Apple scab is a common disease of plants in the rose family (Rosaceae) that is caused by the ascomycete fungus ''Venturia inaequalis''. While this disease affects several plant genera, including '' Sorbus, Cotoneaster,'' and '' Pyrus'', it is ...
, an apple tree (genus ''Malus'') fungal disease caused by ''Venturia inaequalis''
* Black scab, a
potato fungal disease caused by ''Synchytrium endobioticum''
*
Common scab
Common scab is a plant disease of root and tuber crops caused by a small number of ''Streptomyces'' species, specifically ''Streptomyces scabies, S. scabies'', ''Streptomyces acidiscabies, S. acidiscabies'', ''Streptomyces turgidiscabie ...
, a plant bacterial disease caused by ''Streptomyces'' species
*
Fusarium head blight
Fusarium ear blight (FEB) (also called Fusarium head blight, FHB, or scab), is a fungal disease of cereals, including wheat, barley, oats, rye and triticale. FEB is caused by a range of ''Fusarium'' fungi, which infects the heads of the crop, redu ...
, a fungal disease of plants, e.g., grain crops (especially wheat and oats), golf course grass, caused by the several species of ''Fusarium''
* Pear scab, a
pear fungal disease caused by ''Venturia pirina'' or ''Fusicladium pyrorum''
* Poinsettia scab, a spot anthracnose disease caused by ''
Sphaceloma poinsettiae''
*
Powdery scab
Powdery scab is a disease of potato tubers. It is caused by the cercozoan ''Spongospora subterranea'' f. sp. ''subterranea'' and is widespread in potato growing countries. Symptoms of powdery scab include small lesions in the early stages of the ...
, a disease of the skin of potatoes caused by the protozoa ''Spongospora subterranea''
*
Sheep scab
''Psoroptes'' is a genus of mites, including the agents that cause psoroptic mange.
Psoroptic mange
''Psoroptes'' mites are responsible for causing psoroptic mange in various animals, leading to economic losses among farmers of cattle, sheep ...
, a skin disease of sheep caused by the mite ''Psoroptes ovis''
Labor
* Scab, a pejorative term for a
strikebreaker
A strikebreaker (sometimes pejoratively called a scab, blackleg, bootlicker, blackguard or knobstick) is a person who works despite an ongoing strike. Strikebreakers may be current employees ( union members or not), or new hires to keep the orga ...
, a person who works despite strike action or against the will of other employees
Other uses
*
South Coast Air Basin, in California, US
*
Johnny Dole & The Scabs, one of the first punk rock bands in Australia
See also
*
Scabs (disambiguation)
*
Channeled Scablands
The Channeled Scablands are a relatively barren and soil-free region of interconnected relict and dry flood channels, coulees and cataracts eroded into Palouse loess and the typically flat-lying basalt flows that remain after cataclysmic floods ...
, an eroded landscape formed by Missoula Floods in the U.S. state of Washington
*
Scabies
Scabies (; also sometimes known as the seven-year itch) is a contagious human skin infestation by the tiny (0.2–0.45 mm) mite ''Sarcoptes scabiei'', variety ''hominis''. The word is from . The most common symptoms are severe itchiness a ...
, a skin disease caused by the mite ''Sarcoptes scabiei''
*
U.S. Wheat and Barley Scab Initiative, a joint government and academic program to develop control measures to minimize the threat of ''Fusarium'' head blight (scab) in the United States
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