Typhoid conjugate vaccine effectiveness in Malawi: evaluation of a test-negative design using randomised, controlled clinical trial data
<p><strong>Background</strong></p> Typhoid conjugate vaccines are being introduced in low-income and middle-income countries to prevent typhoid illness in children. Vaccine effectiveness studies assess vaccine performance after introduction. The test-negative design is a comm...
| Main Authors: | , , , , , , , , , , , , |
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| 格式: | Journal article |
| 語言: | English |
| 出版: |
Elsevier
2022
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