Letter | Published:

Urea-treated Gram-negative Bacilli in the Indirect Hæmagglutination Reaction

Naturevolume 193pages501502 (1962) | Download Citation



UREA has been used by various authors1–3 for the extraction of bacteria. The work of Neter et al.4 encouraged me to study urea-treated Gram-negative bacteria (S. typhi, S. paratyphi B, S. cholerae suis and Shigella sonnei) in the indirect hæmagglutination reaction (for further details see Brodhage5).

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1

    Walker, J., Biochem. J., 34, 325 (1940).

  2. 2

    Hand, C. N., Lancet, i, 277 (1953).

  3. 3

    Toda, Y., Ann. Tuberc. (Tenri), 7, 1 (1956).

  4. 4

    Neter, E., Westphal, O., Luederitz, O., and Gorzynski, E. A., Ann. N.Y. Acad. Sci., 66 141 (1956). Neter, E., Gorzynski, E. A., Gino, R. M., Westphal, O., and Luederitz, O., Canad. J. Microbiol., 2, 232 (1956).

  5. 5

    Brodhage, H., Z. Hyg., 148, 94 (1961).

  6. 6

    Weinbach, R.., Schweiz. Z. Path. Bact., 21, 1043 (1959).

  7. 7

    Gillissen, G., Z. Hyg., 148, 105 (1961).

Download references

Author information


  1. Department of Pathology and Bacteriology, Cantonal General Hospital, Lucerne, Switzerland



  1. Search for H. BRODHAGE in:

About this article

Publication history

Issue Date




By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.