Big noise over a big issue

A protester shows her disappointment with the Canadian prime minister at the opening ceremony of the Aids conference in Toronto. Photograph: Adrian Wyld/AP
The Guardian's health editor, Sarah Boseley, will be posting from the 16th International Aids conference for News blog this week. Here is her first report:

Already the booing, the cat-calling and the placard waving in front of speakers has begun, and that was only the opening ceremony of the conference, an extraordinary event unlike anything else on the planet that calls itself a medical or scientific meeting. And nobody has yet had time to go near the pharmaceutical company stands with blood-red paint. They will though, mark my words. It's now traditional for Aids activists to let the drug companies know in vivid terms that they consider they have blood on their hands.