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The stability of human, bovine and avian tuberculin purified protein derivative (PPD)
2011
Journal of Infection in Developing Countries
Guidelines recommend storing tuberculin purified protein derivative (PPD) refrigerated. However, especially in developing countries, maintaining the product refrigerated under field conditions can be difficult, limiting its use. Here we determine the effect of prolonged exposure to high temperatures on the potency of human, bovine and avian tuberculin PPD. Methodology: Human, bovine and avian tuberculin PPD were stored for several weeks exposed to temperatures ranging from 37º to 100ºC. The
doi:10.3855/jidc.1689
fatcat:qqe3qm3rxvexrbfrtvcy646qni