A workshop was held on the prevention of hypersensitivity pneumonitis (HP). NIOSH had compiled the information available on existing investigations of this problem in eight facilities with cases of HP. The eight facilities manufactured engines, transmissions, electronics, refrigeration equipment, and other components. Ninety eight cases of diagnosed HP were noted in the eight facilities, at least 22 having had lung biopsy and at least 41 had abnormal chest radiographs or computerized tomography scans. In many cases, reversibility of disease had occurred with exposure cessation, allowing the subjects to return to work to jobs with no metalworking fluid exposure, or in some cases to jobs with exposures to different metalworking fluids. Cases of HP were recognized with metalworking fluid exposures of less than 0.5 milligram/cubic meter. The workshop participants identified knowledge gaps of risk factors, exposure response relationships, intervention efficacy, and natural history, as well as needs for surveillance to define the extent of the problem. The authors conclude that guidance for prevention is limited in the absence of answers to these questions.
We take your privacy seriously. You can review and change the way we collect information below.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
Cookies used to make website functionality more relevant to you. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests.
Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data.
Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. These cookies may also be used for advertising purposes by these third parties.