Why is Dr. Tumpey's radical approach to "virus engineering" controversial? What are the potential benefits of this approach?

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

What is the difference between bacterial infections and viral infections?

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half