At the anti-vaccine movement annual conference:

A: Where’s Bob?
B: He’s dead…
A: And John?
B: Dead too.
A: And Rita is dead too… is anyone alive?
B: We are.
A: What happened to them?
B: They claim it was seasonal flu… I mean, come on? Flu?!
A: Yeah! What a transparent lie!
B: So, Chinese satellite death rays then?
A: For sure! Unless their bodies weren’t found… then we can be pretty sure it was an alien probing gone wrong…