Unlike other allergic reactions, however, anaphylaxis can kill. Reaction may begin within minutes or even seconds of exposure, and rapidly progress to cause airway constriction, skin and intestinal irritation, and altered heart rhythms. In severe cases, it can result in complete airway obstruction, shock, and death.
The 2016 Oakland, California, population is 419,267. There are 7,501 people per square mile (population density).
As of 2006, California had an estimated population of 37,172,015, more than 12 percent of the U.S. population. This includes a natural increase since the last census of 1,557,112 people (that is 2,781,539 births minus 1,224,427 deaths) and an increase due to net migration of 751,419 people.