Thrombocytosis is defined as a platelet count above the upper limit of the normal range (450 x 10 9 /L in adults). This article aims to outline diagnosis, investigation and management of patients with thrombocytosis and to highlight possible complications.
  Dr Edward Jenner discovered the vaccine in 1796 and published his findings in 1798. Edward Jenner invented the vaccine for small pox in 1798.He  prepared the vaccine f â¦ rom the cow pox virus. His discovery could  save more lives than any other medical discovery. Dr Edward Jenner discovered the vaccine in 1796 and published his findings in 1798. Edward Jenner invented the vaccine for small pox in 1798. He  prepared the vaccine f â¦ rom the cow pox virus.
The MMR vaccine is an immunization vaccine against measles, mumps, and rubella (German measles) .It is a mixture of live attenuated viruses of the three diseases, administered via injection. It was first developed by Maurice Hilleman while at Merck. licensed vaccine to prevent measles first became available in 1963, an improved measles vaccine in 1968. Vaccines for the mumps and rubella became available in 1967 and 1969, respectively.