Hetch Hetchy Environmental Debates. Between 1908 and 1913, America witnessed its first national debate over environmental preservation when the growing city of San Francisco, California proposed building a dam in the Hetch Hetchy Valley to provide a steady water supply. The Hetch Hetchy Valley was within Yosemite National Park, however, and protected by the federal government.
Most puppies need at least three DAPP vaccines, two Bordetella vaccines, and one rabies vaccine during these visits to be protected for a full year. The next vaccine visit should occur approximately one year after the last puppy shots were given.ther vaccines are available but should only be considered under special circumstances. Often, protection against several diseases is offered in a single inoculation. For example, a DAPP vaccine protects against distemper, adenovirus, parvovirus and parainfluenza.
DTaP/IPV/Hib is a 5-in-1 vaccine that is given to babies to develop immunity to five potentially deadly diseases: diphtheria, tetanus, whooping cough (pertussis), polio and Haemophilus influenzae type b (Hib).DTaP/IPV (4-in-1) is a pre-school booster immunisation given to toddlers.Td/IPV is a booster immunisation given to adolescents for tetanus, diphtheria and polio. Diphtheria is a respiratory disease that can cause breathing problems, paralysis, heart failure and death.TaP/IPV/Hib is approved for use in babies. At about 12 â 13 months, a combined Hib and meningitis C vaccine is given. DTaP/IPV, which has a reduced dose of the diphtheria, pertussis and polio vaccines, is given to children at about three years. Td/IPV is given to adolescents between the ages of 13 and 18.