Zombie Plague: Plague

The Virus:
“Looks like nothing,” Jefferson said.
“I told the kid it reminded me of these little refill cylinders I used to have for my BB gun when I was a kid,” Tommy said.
“Jefferson laughed. “I can't imagine that you played with anything that didn't have a silencer and at least a ten round clip.”
Tommy laughed and then fell silent. “This is it, Jeff. Strip off the protective cap, push the button... The kid said it doesn't matter after that... How close, how far, it will protect us.”
“Infect us,” Jefferson corrected. “There is a difference.”
“Infect us,” Tommy agreed. “I figure, why not... We paid the big bucks for the rest of it, but this will start us down that path... Why not do it.”
“Why not,” Prescott agreed. “A sample? Just enough for two?”
Tommy shrugged. “He didn't say... I depended upon the reports he smuggled out more than the first hand knowledge he has. He knows what he has seen, but he has not witnessed anyone come back... The reports detail exactly that.”
Jefferson laughed and shook his head. “Immortality.”
“Immortality,” Tommy agreed. He paused, stripped the small red cover from the slim, silver tube and pressed the button before he could change his mind. Nothing: He turned the silver tube back and forth.
“Maybe there should be no sound,” Jefferson said. He had braced for what he expected: A small cloud of vapor, a hiss, something to impart that magic the tube was supposed to contain.
Tommy raised the tube to his nose, but there was no detectable odor. “But did it do its job,” Tommy said so low it might almost have been to himself if he had not raised his eyes and asked of Prescott.
“The million dollar question,” Prescott said quietly.
“Multi-million dollar question,” Tommy corrected. He stared at the container a few seconds longer and then slipped it into his pocket. “In for a penny,” he said.
“In for a pound,” Prescott agreed...