0.25mm is the absolute size
<span>After a week in the mountains, Jill should show an increase in red blood cell production along with a higher base metabolism.</span>
First, the yellow fever virus is phagocytosed by white blood cells. The phagocytosed white blood cell then travel through the lymph vessel. Since lymph node contain white blood and filter lymph, the yellow fever phagocytosed with white blood cell establish in the lymph node.
The answer is 300nm x 18nm
