Evening Business Attire for Women By Meka Jones Women who work in the world of business know how important it is to look professional at the office or at networking events.
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.There are two types of vaccines: one type contains inactivated hepatitis A virus, the other contains a live but attenuated virus.he vaccine protects against the virus in more than 95% of cases and provides protection from the virus for at least fifteen years. There are two types of vaccines: one type contains inactivated hepatitis A virus, the other contains a live but attenuated virus.
Edward Jenner, an English physician, discovered the smallpox vaccine in 1796. He came upon this discovery by noticing that milkmaids who had the cowpox virus, a less threateni â¦ ng disease, did not catch the dangerous smallpox. Jenner then infected an 8-year-old boy with the cowpox.fter six weeks, he exposed the boy to the smallpox disease and the boy did not show any smallpox related symptoms. Sone fun facts: -Jenner coined the term 'vaccine': 'vaca' means cow in Latin. -Before the vaccine, the death rate of the disease was up to 35%.