MMWR. Morbidity and mortality weekly report
-
MMWR Morb. Mortal. Wkly. Rep. · Mar 1997
Measles--United States, 1996, and the interruption of indigenous transmission.
As of December 30, 1996 (week 52), local and state health departments had reported a provisional total of 488 confirmed cases of measles to CDC for 1996, and the Commonwealth of Puerto Rico had reported eight cases. In addition, indigenous transmission of measles in the United States was interrupted for a prolonged period beginning in late 1996. This report summarizes measles surveillance data for 1996, which indicate a substantial proportion of cases were associated with continued international importations of measles and outbreaks among school-aged children who were not required to receive a second dose of measles-containing vaccine (MCV) to attend school.
-
MMWR Morb. Mortal. Wkly. Rep. · Mar 1997
Methemoglobinemia attributable to nitrite contamination of potable water through boiler fluid additives--New Jersey, 1992 and 1996.
Nitrite and nitrate ions are naturally occurring forms of nitrogen that can be present in ground and surface water and can be used as a food preservative because they inhibit the growth of Clostridium botulinum. Exposure to excessive levels of nitrite or nitrate may result in the acute syndrome of methemoglobinemia (MetHb), in which nitrite binds to hemoglobin. This report summarizes the findings of investigations of two incidents in which unintentional exposure to high doses of nitrite occurred through drinking potable water contaminated with additives to boiler conditioning fluids.