MELS223 Lecture 1 11/07/13
Occurrence, distribution and determinants of health and disease in
How many, who, when, where, risk factors?
Is a disease infectious (microbial) ?
Questions : containment, how to treat the patient
Thought it was radioactive discharge but levels were too low to be
Next theory : was a virus. Virus is part of the cause of cancer.
30 years later: Epidemiological findings showed both theories were
wrong. Fathers that worked at nuclear powerplant had twice the risk
At high exposures: risk factor 6.42
If conclusion was virus, then preventative measures would have been
very different- vaccine Streptococcus agalactiae (Lancefield group B): GBS
Bovine pathogen : milk associated disease
1970 – neonatal pathogen
Caused – meningitis, pneumonia, bone and joint infec