They don't. There's plenty of studies and evidence they don't.
The vaccine is a bioweapon. The goal is to get you injected with spike proteins which can cause blood clots which can result in your death. WAKE UP EVERYBODY!
LGB FJB
“..The vaccine is a bioweapon. The goal is to get you injected with spike proteins which can cause blood clots which can result in your death. WAKE UP EVERYBODY!..”
Happened to an older lady at our church. She was pressured by her kids and grandkids to take the jab a few weeks ago. She did....she died today from blood clots...huge ones.
Same thing happened to my mother in-law last month. She had COVID and got over it. She was doing fine. Her sister talked her into taking the jab anyway. She did....she died last month.