What is smallpox considered to be?
dangerous illness fever Leptospirosis homogenous contamination negative nonliving
A B C D E F G H
Some smallpox viruses are maintained in laboratories.
smallpox is usually considered to be nonliving
What is smallpox considered to be? (A) dangerous (B) illness (C) fever (D) Leptospirosis (E) homogenous (F) contamination (G) negative (H) nonliving