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Morio Homma, MD, PhD; Naoki Yokota; Masato Tashiro, MD; Susumu Arai, MD, PhD; Yoshiro Ohara, MD; Sadao Takase, MD, PhD; Katsuya Itahara, MD, PhD

Arch Neurol. 1982;39(2):117-119.

Abstract
• A study was devised to test for Carp's agent in the sera of Japanese patients with multiple sclerosis (MS). The sera were obtained from 17 patients with definite MS and six patients with possible MS. Strain C3H mice were given an intraperitoneal injection of 0.1 mL of each serum. One week before and 1, 3, and 6 weeks after inoculation, blood drops from tail tip were smeared and polymorphonuclear leukocytes (PMNLs) were counted. Although the experimental animals were kept under careful control, substantial fluctuation in the number of PMNL occurred, and the variations of PMNL count in the experimental groups were all within the normal range. We conclude that there is no Carp's agent in the sera of patients with MS in Japan.

Author Affiliations
From the Department of Bacteriology, Yamagata University School of Medicine (Drs Homma, Yokota, Tashiro, and Arai), and the Department of Clinical Neurology, Institute of Brain Diseases, Tohoku University School of Medicine (Drs Ohara, Takase, and Itahara), Japan.

Footnotes
Accepted for publication Feb 28, 1981.

Reprint requests to Department of Bacteriology, Yamagata University School of Medicine, Yamagata Zao-Iida, 990-23, Japan (Dr Homma).

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