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Items: 1 to 50 of 68

1.

Prevalence of Mycobacterium paratuberculosis in ileocecal lymph nodes of cattle culled in the United States.

Merkal RS, Whipple DL, Sacks JM, Snyder GR.

J Am Vet Med Assoc. 1987 Mar 15;190(6):676-80.

PMID:
3570918
2.

Investigation of association of mycobacteria with inflammatory bowel disease by nucleic acid hybridization.

Yoshimura HH, Graham DY, Estes MK, Merkal RS.

J Clin Microbiol. 1987 Jan;25(1):45-51.

3.

Experimental disease in infant goats induced by a Mycobacterium isolated from a patient with Crohn's disease. A preliminary report.

Van Kruiningen HJ, Chiodini RJ, Thayer WR, Coutu JA, Merkal RS, Runnels PL.

Dig Dis Sci. 1986 Dec;31(12):1351-60.

PMID:
3803136
4.

A method for avoiding false-positive reactions in an enzyme-linked immunosorbent assay (ELISA) for the diagnosis of bovine paratuberculosis.

Yokomizo Y, Yugi H, Merkal RS.

Nihon Juigaku Zasshi. 1985 Feb;47(1):111-9. No abstract available.

PMID:
3981830
5.

In vitro antimicrobial susceptibility of a Mycobacterium sp. isolated from patients with Crohn's disease.

Chiodini RJ, Van Kruiningen HJ, Thayer WR, Coutu JA, Merkal RS.

Antimicrob Agents Chemother. 1984 Dec;26(6):930-2.

6.

Possible role of mycobacteria in inflammatory bowel disease. I. An unclassified Mycobacterium species isolated from patients with Crohn's disease.

Chiodini RJ, Van Kruiningen HJ, Thayer WR, Merkal RS, Coutu JA.

Dig Dis Sci. 1984 Dec;29(12):1073-9.

PMID:
6499624
7.

Possible role of mycobacteria in inflammatory bowel disease. II. Mycobacterial antibodies in Crohn's disease.

Thayer WR Jr, Coutu JA, Chiodini RJ, Van Kruiningen HJ, Merkal RS.

Dig Dis Sci. 1984 Dec;29(12):1080-5.

PMID:
6437775
8.

Characteristics of an unclassified Mycobacterium species isolated from patients with Crohn's disease.

Chiodini RJ, Van Kruiningen HJ, Merkal RS, Thayer WR Jr, Coutu JA.

J Clin Microbiol. 1984 Nov;20(5):966-71.

9.

Ruminant paratuberculosis (Johne's disease): the current status and future prospects.

Chiodini RJ, Van Kruiningen HJ, Merkal RS.

Cornell Vet. 1984 Jul;74(3):218-62. Review. No abstract available.

10.

Paratuberculosis: advances in cultural, serologic, and vaccination methods.

Merkal RS.

J Am Vet Med Assoc. 1984 Apr 15;184(8):939-43. No abstract available.

PMID:
6715223
12.

Intrauterine inoculation of Mycobacterium paratuberculosis into guinea pigs and cattle.

Merkal RS, Miller JM, Hintz AM, Bryner JH.

Am J Vet Res. 1982 Apr;43(4):676-8.

PMID:
7073089
13.

Heat inactivation of in vivo- and in vitro-grown mycobacteria in meat products.

Merkal RS, Lyle PS, Whipple DL.

Appl Environ Microbiol. 1981 Jun;41(6):1484-5.

14.

Inactivation of Mycobacterium bovis in meat products.

Merkal RS, Whipple DL.

Appl Environ Microbiol. 1980 Aug;40(2):282-4.

15.

Heat inactivation of Mycobacterium avium-Mycobacterium intracellulare complex organisms in meat products.

Merkal RS, Crawford JA, Whipple DL.

Appl Environ Microbiol. 1979 Nov;38(5):831-5.

16.
17.

Tripeptide hydroxamate from Corynebacterium kutscheri.

McCullough WG, Merkal RS.

J Bacteriol. 1979 Jan;137(1):243-7.

18.

Effectiveness of killed virulent cell vaccine against paratuberculosis.

Larsen AB, Merkal RS.

Proc Annu Meet U S Anim Health Assoc. 1979;(83):480-4. No abstract available.

PMID:
298935
19.

In vitro lymphocyte transformation as a herd survey method for bovine paratuberculosis.

Buergelt CD, DeLisle G, Hall CE, Merkal RS, Duncan JR.

Am J Vet Res. 1978 Apr;39(4):591-5.

PMID:
417649
20.

Lymphocyte transformation: an aid in the diagnosis of paratuberculosis.

Buergelt CD, Hall CE, Merkal RS, Whitlock RH, Duncan JR.

Am J Vet Res. 1977 Nov;38(11):1709-15. No abstract available.

PMID:
412443
21.

Subcutaneous exposure of calves to Myobacterium paratuberculosis compared with intravenous and oral exposures.

Larsen AB, Miller JM, Merkal RS.

Am J Vet Res. 1977 Oct;38(10):1669-71.

PMID:
931152
22.

Comparison of techniques for measuring the local and systemic responses to tuberculin in cattle.

Merkal RS, Lepper AW, Hintz AM, Riley JL.

Am J Vet Res. 1977 Jan;38(1):113-6.

PMID:
319714
23.

Iron-chelating compound from Mycobacterium avium.

McCullough WG, Merkal RS.

J Bacteriol. 1976 Oct;128(1):15-20.

24.

Analysis of the effect of inapparent bovine paratuberculosis.

Merkal RS, Larsen AB, Booth GD.

Am J Vet Res. 1975 Jun;36(6):837-8.

PMID:
1147338
25.

A case of avian tuberculosis of the intestinal tract of a horse.

Merritt AM, Merkal RS, Skye D, Selway S.

Am J Dig Dis. 1975 Jun;20(6):598. No abstract available.

PMID:
1130386
26.

Analysis of the effects of inapparent bovine paratuberculosis.

Merkal RS, Larsen AB, Booth GD.

Am J Dig Dis. 1975 Jun;20(6):597-8. No abstract available.

PMID:
1130385
27.

Age of cattle as related to resistance to infection with Mycobacterium paratuberculosis.

Larsen AB, Merkal RS, Cutlip RC.

Am J Vet Res. 1975 Mar;36(3):255-7.

PMID:
1115424
28.

Growth and metabolic characteristics of Mycobacterium paratuberculosis.

Merkal RS, Curran BJ.

Appl Microbiol. 1974 Aug;28(2):276-9.

29.

Evaluation of a paratuberculosis vaccine given to calves before infection.

Larsen AB, Merkal RS, Moon HW.

Am J Vet Res. 1974 Mar;35(3):367-9. No abstract available.

PMID:
4819719
30.

Laboratory diagnosis of bovine paratuberculosis.

Merkal RS.

J Am Vet Med Assoc. 1973 Nov 1;163(9):1100-2. No abstract available.

PMID:
4201177
31.

Scanning electron microscopy of mycobacteria.

Merkal RS, Rhoades KR, Gallagher JE, Ritchie AE.

Am Rev Respir Dis. 1973 Aug;108(2):381-7. No abstract available.

PMID:
4198352
32.

Scanning electron microscopy of the H37Ra strain of Mycobacterium tuberculosis exposed to isoniazid.

Takayama K, Wang L, Merkal RS.

Antimicrob Agents Chemother. 1973 Jul;4(1):62-5.

33.

Thermography of tuberculin reactions in cattle.

Merkal RS, Larsen AB, Nelson HA, Pier AC.

Infect Immun. 1973 May;7(5):805-8.

34.

Avian tuberculosis in monkeys. A unique mycobacterial infection.

Smith EK, Hunt RD, Garcia FG, Fraser CE, Merkal RS, Karlson AG.

Am Rev Respir Dis. 1973 Mar;107(3):469-71. No abstract available.

PMID:
4632226
36.

Clofazimine treatment of cows naturally infected with Mycobacterium paratuberculosis.

Merkal RS, Larsen AB.

Am J Vet Res. 1973 Jan;34(1):27-8. No abstract available.

PMID:
4683972
37.

Certain blood constituent concentrations in cattle with paratuberculosis.

Kopecky KE, Booth GD, Merkal RS, Baetz AL.

Am J Vet Res. 1972 Nov;33(11):2331-4. No abstract available.

PMID:
5081490
38.

Susceptibility of horses to Mycobacterium paratuberculosis.

Larsen AB, Moon HW, Merkal RS.

Am J Vet Res. 1972 Nov;33(11):2185-9. No abstract available.

PMID:
5081479
39.

Inhibition of fungal growth in the cultural isolation of mycobacteria.

Merkal RS, Richards WD.

Appl Microbiol. 1972 Aug;24(2):205-7.

40.

Effect of methotrexate on rabbits infected with Mycobacterium paratuberculosis or Dermatophilus congolensis.

Merkal RS, Richard JL, Thurston JR, Ness RD.

Am J Vet Res. 1972 Feb;33(2):401-7. No abstract available.

PMID:
4621817
41.

Hematologic changes associated with intravenous johnin testing in cattle.

Kopecky KE, Booth GD, Merkal RS, Larsen AB.

Am J Vet Res. 1971 Sep;32(9):1343-7. No abstract available.

PMID:
4999331
42.

Susceptibility of swine to mycobacterium paratuberculosis.

Larsen AB, Moon HW, Merkal RS.

Am J Vet Res. 1971 Apr;32(4):589-95. No abstract available.

PMID:
4938780
43.

Immunologic mechanisms in bovine paratuberculosis.

Merkal RS, Kopecky KE, Larsen AB.

Am J Vet Res. 1970 Mar;31(3):475-85. No abstract available.

PMID:
4392690
44.

Hypersensitivity and serologic responses in cattle vaccinated with disrupted Mycobacterium paratuberculosis cells and subsequently infected with Mycobacterium bovis.

Larsen AB, Merkal RS, Kopecky KE, Boothe AD.

Am J Vet Res. 1969 Dec;30(12):2167-72. No abstract available.

PMID:
4900967
45.

Comparison of examination and test methods for early detection of paratuberculous cattle.

Merkal RS, Larsen AB, Kopecky KE.

Am J Vet Res. 1968 Aug;29(8):1533-8. No abstract available.

PMID:
4968996
46.

The effect of management on the incidence of clinical Johne's disease.

Larsen AB, Merkal RS.

J Am Vet Med Assoc. 1968 Jun 15;152(12):1771-3. No abstract available.

PMID:
5690493
47.

Experimental paratuberculosis in sheep after oral, intratracheal, or intravenous inoculation: histochemical localization of hydrolase activities.

Merkal RS, Kluge JP, Monlux WS, Larsen AB, Kopecky KE, Quinn LY, Lehmann RP.

Am J Vet Res. 1968 May;29(5):985-94. No abstract available.

PMID:
5689896
48.

Experimental paratuberculosis in sheep after oral, intratracheal, or intravenous inoculation: histochemical localization of dehydrogenase activities.

Merkal RS, Monlux WS, Kluge JP, Larsen AB, Kopecky KE, Quinn LY, Lehmann RP.

Am J Vet Res. 1968 May;29(5):971-82. No abstract available.

PMID:
5689895
49.

Experimental paratuberculosis in sheep after oral, intratracheal, or intravenous inoculation lesions and demonstration of etiologic agent.

Kluge JP, Merkal RS, Monlux WS, Larsen AB, Kopecky KE, Ramsey FK, Lehmann RP.

Am J Vet Res. 1968 May;29(5):953-62. No abstract available.

PMID:
5689894
50.

Experimental paratuberculosis in sheep after oral, intratracheal, or intravenous inoculation: serologic and intradermal tests.

Merkal RS, Larsen AB, Kopecky KE, Kluge JP, Monlux WS, Lehmann RP, Quinn LY.

Am J Vet Res. 1968 May;29(5):963-9. No abstract available.

PMID:
4967839

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