Pediatric allergy-immunology is the field of medicine that deals with problems caused by allergies and other disorders of the immune system. A pediatric allergist-immunologist evaluates, diagnoses, and manages disorders of the immune system in infants, children and adolescents. Some conditions that this specialist treats include asthma, rhinitis, eczema, and allergic reactions to drugs, foods and insect bites. Other areas covered by an allergist-immunologist are immune deficiency diseases, problems related to autoimmune diseases, and organ transplantation.

Doctor density varies by specialty and location. California has 34 practicing pediatric allergy and immunologists. Broken out by city, pediatric allergy and immunology doctor density in Agoura Hills is 1, in Anaheim is 1, in Chico is 1, in Fremont is 1, in Fresno is 1, in Gilroy is 1, in Huntington Beach is 1, in Irvine is 1, in La Jolla is 3, in Laguna Hills is 1, in Los Angeles is 11, in Merced is 1, in Mountain View is 1, in Northridge is 1, in Novato is 1, in Oakland is 1, in Orange is 2, in Palmdale is 1, in Palo Alto is 2, in Sacramento is 1, in San Diego is 2, in San Francisco is 5, in San Jose is 2, in San Rafael is 1, in Sanger is 1, in Santa Ana is 1, in Santa Cruz is 1, in Santa Monica is 1, in Sunnyvale is 1, in Tarzana is 1, in Torrance is 2, in Tustin is 1, in Valencia is 1, and in West Hills is 1.

California’s population is 36,142,137, and it is America’s third largest and most populous state. It also claims the highest and lowest altitudes in the lower 48 states. The lowest point in the country, Death Valley, is also home to the nation’s highest recorded temperature, 134 degrees. Tourists flock to this state for its many outdoor activities and attractions, including Universal Studios, Disneyland, Rodeo Drive shopping, the Golden Gate Bridge in San Francisco, wine country tours, and California’s numerous beaches and parks. Los Angeles is the nation’s second largest city, but California’s capital is Sacramento. The giant sequoias in California’s forests are among the oldest living things in the world, and a redwood in the Redwood National Park is said to be the world’s tallest tree, at 365 feet. California achieved statehood in 1850, and was named the Golden State after the beginning of the Gold Rush in 1848.

According to 2005 Census estimates, California has a population of 36,132,147. Of this population, 9,308,563 are under the age of 18 and 3,827,038 are at or above the age of 65.