Explain in detail the difference between antigenic shift and drift.
QUESTION 1 1. Ignaz Semmelweiss is known for which of the following? A. determining that contaminated medical equipment was causing childbed fever B. developing a smallpox vaccine based on a cowpox variant C. Shutting down the broad street pump D. Discovered the association between draining swamps and preventing malaria E. Created the germ theory QUESTION […]