Scab
# Scab

Scab may refer to:

## Biology

* Scab, a hard coating on the skin formed during the wound healing reconstruction phase
* scAb, single-chain antibody fragment

### Infections and infestations

* Apple scab, an apple tree (genus Malus) fungal disease caused by Venturia inaequalis
* Black scab, a potato fungal disease caused by Synchytrium endobioticum
* Common scab, a plant bacterial disease caused by Streptomyces species
* Fusarium head blight, 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, a disease of the skin of potatoes caused by the protozoa Spongospora subterranea
* Sheep scab, a skin disease of sheep caused by the mite Psoroptes ovis

## Labor

* Scab, a pejorative term for a strikebreaker, 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
