Immunology

Resident T cells discovered in lymph nodes

The immune system is fast when it comes to fighting viruses, bacteria and other pathogens. But it also has to know when not to attack—for example, harmless substances such as pollen or house dust, which otherwise trigger ...

Immunology

New research points out ways to improve tuberculosis vaccines

A new study from the University of Pittsburgh Center for Vaccine Research published in the Journal of Experimental Medicine describes a previously unappreciated role for a class of immune cells in the early stages of tuberculosis ...

Oncology & Cancer

Q&A: Merkel cell carcinoma

I recently heard about a type of skin cancer called Merkel cell carcinoma. I'm not familiar with this condition. Can you explain what it is? Do I need to do anything different to protect myself?

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