Research explainers: How training lowers immunity; HIV cure - still a way to go

Drs Fabien Vincent and Kim Murphy, Department of Immunology, explain how intense or prolonged exercise can lower immunity, but it's a short term effect, and can easily be counteracted with proper diet and hygiene.
https://theconversation.com/sick-of-exercise-heres-how-training-can-lower-immunity-29390

Professor Sharon Lewin, Department of Infectious Diseases, explains that "what weʼve learnt over the last few years is that both a sterilising and functional cure [for HIV] are indeed possible, and may be something we could eventually achieve." But the 'sterilising' cure, or elimination of all the HIV infected cells is "very, very difficult". The 'functional' cure is treating the disease like cancer in remission - there, but keeping a very low profile.
http://theconversation.com/we-need-a-cure-for-hiv-but-theres-still-a-long-way-to-go-29330