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).
There are many levels of atmosphere around the Earth as you move from ground into space, 5 levels as we have modeled them. The first is the Troposphere, which reaches out ~ 20,000 feet - 65,600 feet (6-20 km) from ground level. Mt. Everest is about this high. Most planes, etc remain in this level. The second is the Stratosphere, which reaches out ~ 164,000 feet (50 km). Weather balloons are able to reach this high into atmosphere. The third is the Mesosphere, which reaches ~ 279,000 feet (85 km) from ground level. This is generally where meteors burn up and can be seen from the ground.