What is the fundamental difference between a virus and a bacterium?
Antibiotics treat bacterial infections but not viral ones. What biological differences between viruses and bacteria explain this, and how do antiviral drugs work instead?
Open
Questions
4 questions in Medicine
Why does cancer develop, and why is it so difficult to cure?
Cancer is not a single disease. What is happening at the cellular level when cancer develops, and what makes it so challenging to treat universally?
Open
How do vaccines work?
Vaccines protect against infectious diseases without exposing a person to the active pathogen. What is the immunological mechanism that makes this possible?
Open
What is the placebo effect, and is it "real"?
Patients who receive inert treatments sometimes improve. Is the placebo effect a genuine physiological phenomenon, a statistical artefact, or something else?
Open