Immunology primer

An overview of the immune system, concentrating on the roles played by B and T lymphocytes, and the antigen-presentation system. Also featured on the recently released HHMI DVD, AIDS: Evolution of an Epidemic, available free from HHMI. Order DVDs here.

Retroviruses and viral diversity

A brief discussion of what makes a virus a retrovirus, and how they differ from other types of viruses. Also featured on the recently released HHMI DVD, AIDS: Evolution of an Epidemic, available free from HHMI. Order DVDs here.

Antibiotics Attack!

A multimedia presentation covering how antibiotics function to fight invaders. Five major sections with animations cover bacteria, antibiotic structure, pathways of attack, penicillin, and antibiotic resistance.

Bacterial Conjugation

Watch this Flash animation to see how bacteria share genes that encode resistance to antibiotics.

Viral Subunit Reassortment

Watch this Flash animation to see how different viral strains can be generated by a process called subunit reassortment.

Viral Infection Mechanism

Watch this Flash animation to see how viruses are studied in the lab.