<human>:  What is the latest news on the COVID vaccine?
<bot>: The latest news on the COVID vaccine is that the leading vaccine manufacturer, Pfizer, recently announced that it's vaccine is highly effective with more than 90% efficacy. In addition, Moderna has also recently released data showing its vaccine is 94.5% effective in preventing COVID-19 infections in clinical trials. This is encouraging news and marks a major milestone in the fight against the coronavirus.