"Tony, something isn't right."
Dr. Banner stepped away from the microscope in a daze, took off his glasses, and wearily rubbed the bridge of his nose.
"What isn't right? What do you mean?"
Tony Stark was carefully operating the Mechanical Arm, adding a drop of reagent to a test tube containing a little green solution. He asked without looking up.
Dr. Banner came over and watched the reaction in the test tube with Tony, watching little bubbles rise from the reacting liquid.
"Experiment six hundred and forty-three failed."
Tony sounded disappointed, but also as though he had expected it. He sighed and announced the result, then removed his safety goggles and yawned.
"These viruses are evolving too quickly."
Wearing protective gloves, Dr. Banner removed the test tube from the lab bench, then froze the sample as usual.
"When we compared it with modern viral samples, we found that the new virus seems to have a structure similar to influenza."
"It took influenza nearly a hundred years to evolve into its current form so it could coexist with humans."
"You can still make out traces of influenza in this strange virus's protein structure, but it's evolving far too quickly."
Dr. Banner pressed a button to close the refrigerated cabinet in front of him, then hunched his shoulders. The blast of cold air had made him uncomfortable.
He felt much more sensitive to the cold than before.
"It's been six days since we started studying this virus. Right from the start, I felt its rate of evolution was extraordinary. Our morning and evening observations gave us almost entirely different results."
"But now, it changes every few dozen minutes."
"I suspect that by tomorrow, it might be evolving every second."
"We've seen similar viruses before in the history of human biochemical research, but