New data from the Texas health department released Monday proves what health officials have been trying to tell vaccine-hesitant Texans for months: The COVID-19 vaccine dramatically prevents death and is the best tool to prevent transmission of the deadly virus.Out of nearly 29,000 Texans who have died from COVID-related illnesses since mid-January, only 8% of them were fully vaccinated against the virus, according to a report detailing the Texas Department of State Health Services’ findings.And more than half of those deaths among vaccinated people were among Texans older than 75, the age group that is most vulnerable to the virus,