By Mary Kekatos Senior Health Reporter For Dailymail.com
Published: 20:46 BST, 1 September 2020 | Updated: 20:49 BST, 1 September 2020
A man who lost seven family members to coronavirus has become the first American dosed in Oxford University's final stage testing for its vaccine.
Jacob Serrano, 23, and 31 others received either a placebo or the vaccine from Oxford and its partner AstraZeneca in Florida over the weekend.
Phase III looks at whether the vaccine is effective at preventing COVID-19 symptoms on a large-scale with thousands of volunteers.
Serrano says he wants to help be part of the solution to stop the deadly virus - which has killed more than 183,000 in the US so far.
'[I] look at the amount of lives that we lost and I just don't want that to keep occurring,' he told CBS News in an exclusive interview.
Jacob Serrano, 23, has become the first American dosed in the final phase of AstraZeneca and Oxford University's coronavirus vaccine trial
Serrano (left and right) has lost seven family members to COVID-19 and says he wants to help stop the pandemic in its tracks. He and 31 other volunteers were given either an immunization or a placebo over the weekend at Headlands Jem Research Institute in Lake Worth, Florida
It's not clear which family members Serrano has lost during the pandemic, but he says any risk of being part of the trial is worth it.
'I know there was a risk because it's like - it's a trial, but I'd