At six months infants receive DTaP, Hib, and PCV. Between 12 and 15 months infants should receive the HepB #3 vaccine, Hib, IPV, Measles, Mumps, Rubella #1 (MMR), Varicella, PCV, and their yearly influenza vaccine. The DTaP should be administered between 15 and 18 months.
When the Wall Street Crash of 1929 struck less than eight months after he took office, Hoover tried to combat the ensuing Great Depression in the United States with large-scale government public works projects such as the Hoover Dam, and calls on industry to keep wages high.
Once the United States entered the  war, Hoover was appointed head of the United States Food  Administration by Woodrow Wilson. Hoover became the 3rd  United States Secretary of Commerce and was in  office from March 5, 1921 to August 21, 1928.     Major Domestic Policy: Issues that were due to The  Great Depression dominated Hoover's presidency.