Shingles vaccine (ZostavaxÂ®) reduces the risk of developing shingles and the long-term pain from post-herpetic neuralgia (PHN) caused shingles. The Advisory Committee on Immunization Practices (ACIP) recommends shingles vaccine for people aged 60 years and older.here are no long-term studies showing how long the vaccine is effective in 50 to 59 year olds. In adults vaccinated at age 60 years or older, protection from the vaccine decreases within the first 5 years after vaccination.
Earth's atmosphere is about 300 miles (480 kilometers) thick, but most of it is within 10 miles (16 km) the surface. Air pressure decreases with altitude. At sea level, air pressure is about 14.7 pounds per square inch (1 kilogram per square centimeter).
Because the Earth slightly flattens out at the poles, its shape is an oblate spheroid, meaning that it is similar to a sphere but is not perfectly regular. The circumference of the Earth at the equator is 24,902 miles. Again, that is a bit more than its circumference from pole to pole, which is 24,860 miles. At 5.52 grams per cubic centimeter, the Earth is the densest planet in the solar system.