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).
San Francisco Population 2017. San Francisco is also the 4th most populous city in California (behind Los Angeles, San Diego and San Jose) with a 2010 population of 805,235 according to the last census. The 2016 estimated population of San Francisco is now 864,816.