1.   One company has risen to the challenge of combating bad hygiene with a new dog food with decay-deterring composition.

2.   The researchers, from the Immunology and Allergy Laboratory in Rome, are not suggesting bad hygiene as a preventive measure for asthma.

3.   When partners complain about the taste of oral sex, the problem may result from infection or bad hygiene, but it may also be dinner.

4.   Bad personal hygiene.

5.   Poverty, poor nutrition, bad hygiene and crowded living conditions are to blame, said another expert, Lianne Metz-Krenker, of Project Hope.

6.   The bacteria is found mainly in undercooked meat but can also contaminate cow milk and cheese and may be transmitted by humans through bad hygiene.