what can some viruses cause?
extinction anemia wounds leukemia Allergies loss of gravity Dehydration virus protection
A B C D E F G H
Leukemias are cancers of the blood.
some viruses can cause leukemia
what can some viruses cause? (A) extinction (B) anemia (C) wounds (D) leukemia (E) Allergies (F) loss of gravity (G) Dehydration (H) virus protection