1921
Volume s1-31, Issue 5
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Filariasis due to (Cobbold) is endemic on Okinawa and available evidence indicates its probable presence throughout the southern Ryukyu Islands (1, 2). The infection is characterized by a high degree of nocturnal microfilarial periodicity, with the greatest density of microfilariae appearing in the peripheral blood between 8:00 p.m. and 4:00 a.m. (1000 to 0400) (3, 4, 5). The incidence of microfilaremia in the native population of Okinawa during the period April through July, 1945, as determined by examination of thick blood films or by the Knott concentration technique (6), was found to range from approximately ten to thirty percent in various groups (4, 5, 7). In general inhabitants of the rural districts were reported to show a higher incidence of microfilaremia than observed in groups of civilians evacuated from relatively urban areas in the southern part of the island.

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/content/journals/10.4269/ajtmh.1951.s1-31.614
1951-09-01
2017-11-18
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