Volume 5-Issue 2-1998 "The Deadly Drain:" Probable hydrogen sulfide poisoning, Unaizah, Al-Qassim region, May 28, 1998 Salmonella outbreak associated with tiramisu dessert, Riyadh, Dec 28-31, 1997 Mumps outbreak in a highly vaccinated population, Al-Faisaliyah district, Riyadh, March-June, 1998 Letters to the Editor (Prof Haroutune K. Armenian, School of Public Health, Johns Hopkins University, Baltimore, MD, USA To the Editor (Dr. John Hardie, Chairman, Department of Dentistry, King Fahad National Guard Hospital, Riyadh, Saudi Arabia)