Indirect hemagglutination tests on sera from 251 Dall sheep (Ovis dalli) from interior Alaska collected during the period 1979 to 1987 revealed no evidence of exposure to Mycoplasma ovipneumoniae. Apparently, this potentially fatal disease agent has not been introduced into free-ranging Dall sheep populations. In the interest of continued health of such Dall sheep, strict enforcement of domestic animal health regulations and prudent land use practices are clearly indicated.
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