Case Fatality Ratios
The case fatality ratio is calculated as follows:
Patients’ vital status is recorded at hospital discharge (if hospitalized) or at 7 days after the specimen collection date (if not hospitalized).
Results
| Pathogen | Total 2015 | ||
|---|---|---|---|
| # of deaths | Total # of cases | CFR | |
| Total | 77 | 20,107 | 0.38 |
| Campylobacter | 11 | 6,309 | 0.17 |
| Listeria† | 15 | 116 | 12.93 |
| Salmonella | 32 | 7,728 | 0.41 |
| Shigella | 1 | 2,688 | 0.04 |
| STEC§ O157 | 3 | 463 | 0.65 |
| STEC non-O157 | 1 | 796 | 0.13 |
| Vibrio | 5 | 192 | 2.60 |
| Yersinia | 1 | 139 | 0.72 |
| Cryptosporidium | 8 | 1,612 | 0.50 |
| Cyclospora | 0 | 64 | 0.00 |
*Data are preliminary
†Listeria cases defined as isolation of L. monocytogenes from a normally sterile site or, in the setting of miscarriage or stillbirth, isolation of L. monocytogenes from placental or fetal tissue
§Shiga toxin-producing Escherichia coli
Download the Number of Deaths and Case Fatality Ratio by Pathogen, 2015 Cdc-excel[XLS – 11KB] Table.
| Pathogen | Age group (yrs) | Total | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| <5 | 5–9 | 10–19 | 20–64 | ≥65 | ||||||||||||||
| # of deaths |
Total # of cases | CFR | # of deaths | Total # of cases | CFR | # of deaths | Total # of cases | CFR | # of deaths | Total # of cases | CFR | # of deaths | Total # of cases | CFR | # of deaths | Total # of cases | CFR | |
| Total | 5 | 3,485 | 0.14 | 1 | 1,656 | 0.06 | 2 | 1,854 | 0.11 | 27 | 10,483 | 0.26 | 42 | 2,624 | 1.60 | 77 | 20,107 | 0.38 |
| Campylobacter | 0 | 633 | 0.00 | 0 | 254 | 0.00 | 1 | 507 | 0.20 | 5 | 3,918 | 0.13 | 5 | 996 | 0.50 | 11 | 6,309 | 0.17 |
| Listeria† | 1 | 9 | 11.11 | 0 | 0 | 0.00 | 0 | 0 | 0.00 | 3 | 41 | 7.32 | 11 | 66 | 16.67 | 15 | 116 | 12.93 |
| Salmonella | 3 | 1,702 | 0.18 | 0 | 553 | 0.00 | 1 | 683 | 0.15 | 13 | 3,693 | 0.35 | 15 | 1,096 | 1.37 | 32 | 7,728 | 0.41 |
| Shigella | 0 | 582 | 0.00 | 0 | 560 | 0.00 | 0 | 211 | 0.00 | 1 | 1,230 | 0.08 | 0 | 104 | 0.00 | 1 | 2,688 | 0.04 |
| STEC§ O157 | 0 | 110 | 0.00 | 1 | 74 | 1.35 | 0 | 89 | 0.00 | 0 | 156 | 0.00 | 2 | 34 | 5.88 | 3 | 463 | 0.65 |
| STEC non-O157 | 1 | 200 | 0.50 | 0 | 62 | 0.00 | 0 | 148 | 0.00 | 0 | 313 | 0.00 | 0 | 73 | 0.00 | 1 | 796 | 0.13 |
| Vibrio | 0 | 2 | 0.00 | 0 | 12 | 0.00 | 0 | 10 | 0.00 | 0 | 123 | 0.00 | 5 | 45 | 11.11 | 5 | 192 | 2.60 |
| Yersinia | 0 | 22 | 0.00 | 0 | 5 | 0.00 | 0 | 13 | 0.00 | 0 | 60 | 0.00 | 1 | 39 | 2.56 | 1 | 139 | 0.72 |
| Cryptosporidium | 0 | 225 | 0.00 | 0 | 136 | 0.00 | 0 | 192 | 0.00 | 5 | 898 | 0.56 | 3 | 159 | 1.89 | 8 | 1,612 | 0.50 |
| Cyclospora | 0 | 0 | 0.00 | 0 | 0 | 0.00 | 0 | 1 | 0.00 | 0 | 51 | 0.00 | 0 | 12 | 0.00 | 0 | 64 | 0.00 |
*Data are preliminary
†Listeria cases defined as isolation of L. monocytogenes from a normally sterile site or, in the setting of miscarriage or stillbirth, isolation of L. monocytogenes from placental or fetal tissue
§Shiga toxin-producing Escherichia coli
Download the data: Table 14. Number of Deaths and Case Fatality Ratio by Age Group and Pathogen, 2015 Cdc-excel[XLS – 13KB] Table