evidence: Pfizer’s updated COVID-19 vaccine, designed for the Omicron XBB.1.5 subvariant (Kraken) only differs from earlier COVID-19 vaccines in that it contains mRNA coding for the spike protein of a different SARS-CoV-2 sublineage. A clinical study of this vaccine in humans is fully enrolled, and data are expected in late 2023. - Can the COVID-19 vaccine cause Vaccine-Acquired Immune Deficiency Syndrome (VAIDS)? Vaccine-Acquired Immune Deficiency Syndrome (VAIDS) is a term primarily used on social media and is not a condition that is recognized by expert medical communities. COVID-19 vaccines work by triggering the body’s natural immune response. According to the Centers for Disease Control and Prevention (CDC), "There is no scientific evidence that COVID-19 vaccines weaken or impair the immune system." Further, the CDC notes that there is no relationship between COVID-19 vaccination and human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS).13 - Does Albert Bourla want to "reduce the number of people in the world by 50%"?