BACTERIOLOGICAL STUDIES ON ANIMALS EXPOSED TO NEUTRON RADIATION,

Abstract

Mice exposed to supralethal doses of neutron radiation and combined neutron and gamma radiation from the nuclear device used in Upshot-Knothole 9 (May 8, 1953) died within 21/2 to 4 days. Bacteriological examination of the heart blood and spleen from animals sacrificed while moribund revealed that 78 per cent of the animals receiving only neutron radiation and 96 per cent of the animals receiving combined neutron and gamma radiation suffered an extensive invasion by the normal intestinal bacteria. Contrary to findings reported elsewhere on animals exposed to x rays, invasion by two or more species of bacteria was found to be a common occurrence. In a large number of animals examined, positive cultures were obtained only from the spleen. This is interpreted as indicating that, although the filtering mechanism of the spleedn still functioned, this organ was unable to destroy the invading bacteria either because of the overwhelming number of bacteria or because of the injury to the spleen itself. Hence the organisms continued to multiply and eventually spilled back into the circulatory system.

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1953
Accession Number
AD0611226

Entities

People

  • Myron S. Silverman
  • Victor P. Bond

Organizations

  • Naval Radiological Defense Laboratory

Tags

DTIC Thesaurus Topics

  • Anatomy
  • Bacteria
  • Biological Sciences
  • Blood
  • Cardiovascular System
  • Electromagnetic Radiation
  • Filtration
  • Gamma Rays
  • Ionizing Radiation
  • Radiation
  • X Rays

Fields of Study

  • Biology

Readers

  • Cardiovascular Physiology
  • Microbial Pathology
  • Nuclear and Radiation Engineering.