A virus is spread through the air in droplets. A public health team collected data from five food-processing factories during the same 12-week period. The factories varied in size, so the team calculated the number of new cases per 1000 workers.
| Factory | Percentage (%) of workers vaccinated | Number of new cases per 1000 workers |
|---|---|---|
| J | 22 | 184 |
| K | 41 | 132 |
| L | 59 | 86 |
| M | 78 | 39 |
| N | 94 | 11 |
Describe the pattern formed by the results for the five factories. Include one numerical comparison.
252 exam-style questions on AQA GCSE Biology 3.1 Communicable diseases, covering 3.1.1 Communicable (infectious) diseases, 3.1.2 Viral diseases, 3.1.3 Bacterial diseases, 3.1.4 Fungal diseases, 3.1.5 Protist diseases, 3.1.6 Human defence systems, 3.1.7 Vaccination, 3.1.8 Antibiotics and painkillers, and 3.1.9 Discovery and development of drugs. Each one has a worked solution and a mark scheme showing where the marks go.