Matthias Rath, the notorious AIDS denialist and vitamin salesman who has campaigned against anti-retrovirals and peddled vitamins as AIDS cures has dropped his libel action against the Guardian newspaper. He sued over articles criticising his activities in South Africa where he conducted illegal clinical trials and persuaded countless people to stop taking anti-retroviral medication.

Read the Guardian's reports:

• Fall of the doctor who said his vitamins would cure Aids
• Video: How Rath persuaded patients to stop their prescribed medication
• Comment (Ben Goldacre): With their money, myopia and abuses, these pill makers match big pharma
• Editorial: Vitamin deficiency