1876: Alexander Graham Bell invents the telephone, for which he receives two patents. With two financial backers founds the company that becomes AT&T. 1877: The Bell Telephone Company, the first predecessor company to AT&T, is formed and issues stock to the seven original shareowners.
Viral Hepatitis is considered to be contagious between people. Generally the infectious agent may be transmitted by saliva, air, cough, fecal-oral route, surfaces, blood, needles, blood transfusions, sexual contact, mother to fetus, etc. Viral Hepatitis, although infectious, is not a genetic disease.It is not caused by a defective or abnormal gene. The contagious disease, Viral Hepatitis, can be transmitted: 1  by sexual conduct between people. 2  from person to person by blood. 3  from the mother to her fetus.4  from person to person by saliva, air, coughing, contact, surfaces, fecal-oral route, etc.he contagious disease, Viral Hepatitis, can be transmitted: 1  by sexual conduct between people. 2  from person to person by blood. 3  from the mother to her fetus. 4  from person to person by saliva, air, coughing, contact, surfaces, fecal-oral route, etc.
A person with hepatitis B is contagious as long as the virus is present in their blood. Anyone who tests positive for the presence of hepatitis C virus (HCV RNA test) should be considered contagious.The HCV RNA test may be performed as follow up to a positive result for anti-HCV.^ Back to top.ften, people with viral hepatitis can spread the infection even though they don't have symptoms. With hepatitis A, you may be contagious from the time you are infected and continue to be contagious, but less so, for several weeks after symptoms, such as jaundice, develop.