africa
aggressive
antibody
bacillus
background
bacteria
bacterium
biological
biothique
blood
bread
cell
colier
contagion
death
disease
ebola
economic
effect
electronic
fever
global
hospital
hypovolemic
illness
illustration
infection
laboratory
magnification
medical
medicine
microbe
microorganism
microscope
microscopic
nucleus
outbreak
people
risk
science
shock
sickness
spreading
strain
study
symptom
technology
terrorism
transmitted
vaccinia
viral
virus
weapon