Immediate hypersensitivity to aztreonam.

@article{lvarez1990ImmediateHT,
  title={Immediate hypersensitivity to aztreonam.},
  author={Javier Soto {\'A}lvarez and J A Sacrist{\'a}n del Castillo and I Sampedro Garc{\'i}a and M J Alsar Ortiz},
  journal={Lancet},
  year={1990},
  volume={335 8697},
  pages={1094}
}