Parathion causes secondary poisoning in a laughing gull breeding colony.
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Biomedical subjects
Publications and source records attributed to C A Mitchell.
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A standardized respiratory questionnaire and pulmonary function tests, including measurement of forced vital capacity (FVC), one-second forced expiratory volume (FEV1.0), and maximum expiratory flow rate at 50% FVC (MEF50%), were administered to five groups of employees in a filter-manufacturing plant to determine the acute and chronic effects of exposure to phenolic resin fumes. Employees exposed for more than five years had lower FEV1.0/FVC and MEF50%/FVC ratios than a group that had smoked more but that had never been consistently exposed to resin fumes. The existence of chronic airway obstruction was also evident by a slight excess of chronic cough and sputum production in the exposed groups. However, in spite of the high proportions of subjects reporting acute respiratory symptoms, we found only small decreased in pulmonary function during the workday and workweek.
Instillation of parainfluenza virus type 2 in the mammary gland of the goat resulted in the appearance of specific and high titered antibodies in the milk. The globulin fraction of the milk was separated and conjugated with fluorescein isothiocyanate. These conjugated antibodies could be successfully used in the specific staining of the homologous virus in infected L-132 cells. Therefore, milk from such immunized animals represents a rich and convenient source of specific antibodies for use in immunofluorescence and other serological tests.
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