Severe respiratory illness associated with a novel coronavirus - Saudi Arabia and Qatar, 2012.

Reports on the first two patients affected by a "new" coronavirus. The first patient, hospitalized in June 2012, died, and the other was in both pulmonary and renal failure. In this paper the CDC referenced a website posting by the WHO, offering "interim case definitions" and criteria for "probable case" and "confirmed case." This paper is available from the CDC at this link.

(Thanks to Juan Weiss for this reference and its interpretation.)