3d
anti virus
antibodies
artery
bacillus
bacterium cell
biology
blood
body
cancer
colon
death
disease
ebola
epidemic
erythrocytes
fever
genetic
germ
global
health
hemorrhagic
hospital
human
illness
infection
intestine
life
macro
medical
medicine
micro
microbe
microbiology
microorganism
microscopic
nerves
organic
outbreak
pain
patient
people
plasma
red
render
serum
sick
sickness
spreading
transmit
vein
virus