• A doodle on search giant Google’s homepage on February 17, 2022, has featured Japanese virologist Dr Michiaki Takahashi, the developer of the world’s first vaccine against chickenpox, to commemorate his 94th birthday. 
  • In 1974, he came up with the first vaccine against Varicella Virus, which causes the disease. The drug was subjected to a thorough trial process, involving immunosuppressed patients, eventually proving to be highly effective. 
  • In 1994, Dr Takahashi was appointed the director of the Microbial Disease study Group at Osaka University. He held this position until retirement.