Echinococcus granulosus antigen B is encoded by a gene family.

@article{Chemale2001EchinococcusGA,
  title={Echinococcus granulosus antigen B is encoded by a gene family.},
  author={Gustavo Chemale and Karen Luisa Haag and Henrique Bunselmeyer Ferreira and Arnaldo Zaha},
  journal={Molecular and biochemical parasitology},
  year={2001},
  volume={116 2},
  pages={233-7}
}