No. Once you recover from Hepatitis A, you develop antibodies that protect you from the virus for life. An antibody is a substance found in the blood that the body produces in response to a virus. Antibodies protect the body from disease by attaching to the virus and destroying it.eople who have ever had a serious allergic reaction to the Hepatitis A vaccine or who are known to be allergic to any part of the Hepatitis A vaccine should not receive the vaccine. Tell your doctor if you have any severe allergies.
An Armenian inventor, Hovannes Adamian, also experimented with color television as early as 1907. The first color television project is claimed by him, and was patented in Germany on March 31, 1908, patent â 197183, then in Britain, on April 1, 1908, patent â 7219, in France (patent â 390326) and in Russia in 1910 (patent â 17912).
If 1965 was the watershed moment for color broadcasting, there was still the small problem of the viewing public not having color television sets. According to NBC, there were only 2,860,000 color households in the United States as of January 1st, 1965 (though that was up from 1,620,000 on January 1st, 1964) [ 25 ]. By July 1st, the number stood at 3,600,000 and on October 1st it was at 4,450,000 color sets [ 26 ], [ 27 ].