Hepatitis A vaccine is a vaccine against the hepatitis A virus. The first successful vaccine against it was invented by Maurice Hilleman at Merck. The vaccine protects against the virus in more than 95% of cases and provides protection from the virus for at least fifteen years.he initial dose of the vaccine should be followed up by a booster six to twelve months later. Protection against hepatitis A begins approximately two to four weeks after the initial vaccination. Protection is proven to last at least 15 years and is estimated to last at least 25 years if the full course is administered.
The Channels--sandstone boulders on the Brumley Gap Trail in Washington County, Virginia. Find this Pin and more on Take a Hike! by bethoskinner. The Channels--sandstone boulders on the Brumley Gap Trail in Washington County, Virginia. See More
Approximately 6-mile roundtrip hike from VA-80 in Hayter's Gap to the Great Channels of Virginia on Middle Knob. Incredibly scenic hike along Clinch Mountain from Hayter's Gap to Middle Knob along the 14-mile Brumley Mountain Trail, one of the East's newest long (10 miles+) hiking trails. Although the Brumley Mountain Trail runs all the way from Hayter's Gap to Hidden Valley Lake off of US-19 in Moccasin Gap, this guide features the trail's most heavily used, easternmost 3 miles that travel to the Great Channels of Virginia.