"Perfect." Senku complimented and slid another plastic slide over that one. "And don't do that. Your mouth has all kinds of bacteria in it." He advised and then clipped his sample in first to take a look.

"This is what my blood looks like under the microscope." He said after a moment and stepped out of the way. "Elevated white blood cells at the moment, but that's not surprising I had a bad allergic reaction a week ago."