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.
They also found that levels of the virus (viral load) were highest during two days following infection, before symptoms had developed. This suggests that humans with the flu may be actually be most contagious before they develop any symptoms (although further research would be needed to confirm or disprove this).