Table 1 Classification of the index cases and of cases identified by index case in Oswaldo Cruz School Hospital in Brazil.
From: Children with pertussis inform the investigation of other pertussis cases among contacts
Classification | ||||
|---|---|---|---|---|
Primary | Co-primary | Secondary | Total | |
Index cases | 18 (35.2%) | 2(4%) | 31(60.8%) | 51 |
Cases identified by index case | 39(36.4%) | 6(5.6%) | 62(58%) | 107 |
Total | 57 | 8 | 93 | 158 |