1. Anon. (1988) Salmonella enteritidis phage type 4: chicken and egg. Lancet, ii, 720–2.
2. Anon. (1992a) FDA Enforcement Report, February 26: 3.
3. Anon. (1992b) Salad dressings. Which?, 36, 391, 395–7.
4. Anon. (1993a) Cross-contamination/different strain in Oregon E. coli case. Food Chemical News, 35(8), 32–3.
5. Anon. (1993b) Tainted mayo blamed in Sizzler E. coli cases. Nation-s-Restaurant-News, April 19, 3.