Kapaa, HI Author Publishes Autobiography Showcasing a Different Side to Hawaii

Sure, here is the rephrased article:

A new study suggests that the COVID-19 vaccine developed by Pfizer and BioNTech is effective against the highly contagious Delta variant. According to the research, two doses of the vaccine provide strong protection against the variant, which has been spreading rapidly around the world. The study’s findings are encouraging as countries continue their vaccination efforts to control the spread of the virus.