The Pfizer-BioNTech COVID-19 vaccine, known as Comirnaty, has been shown to be effective in preventing COVID-19 and is widely used around the world. Like all vaccines, it can cause side effects, most of which are mild and temporary. Here’s a summary of what is known about side effects and long-term effects:
### Common Side Effects
Most people experience mild to moderate side effects, which typically resolve within a few days. These


