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JAMA. 1999;281:1787-1788.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

MMWR. 1999;48:265-269

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During September 29, 1998-April 4, 1999, 229 cases of febrile encephalitis (111 [48%] fatal) were reported to the Malaysian Ministry of Health (MOH). During March 13-19, 1999, nine cases of similar encephalitic illnesses (one fatal) and two cases of respiratory illness occurred among abattoir workers in Singapore. Tissue culture isolation identified a previously unknown infectious agent from ill patients. This report summarizes the preliminary epidemiologic and laboratory investigations of these cases, which indicate that a previously unrecognized paramyxovirus related to, but distinct from, the Australian Hendra virus is associated with this outbreak.

MALAYSIA

A case of suspected illness was defined as fever, severe headache, myalgia, and signs of encephalitis or meningitis. Three clusters of cases have been identified. The first cluster began in late September 1998 near the city of Ipoh in the state of Perak. Cases continued to occur in this region until early . . . [Full Text of this Article]

Laboratory Features

Epidemiologic Features

Case Report

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