Comparison of the sensitivity of laryngeal swabs and deep tracheal catheters for detection of Mycoplasma hyopneumoniae in experimentally and naturally infected pigs early and late after infection

1. Sponheim, A.
2. Alvarez, J.
3. Fano, E.
4. Schmaling, E.
5. Dee, S.
6. Hanson, D.
7. Wetzell, T.
8. Pieters, M.