4.5 Illustrative algorithm combinations

To aid understanding of how the different algorithms interlink to provide a final diagnosis for a person, illustrative scenarios are presented in Fig. 4.8 to Fig. 4.10. Three scenarios are provided, with two simulated pathways in each. The scenarios are based on three epidemiologic settings: high TB/HIV, high Hr-TB and high MDR/RR-TB. These examples are for illustrative purposes only – they do not represent a specific recommendation. There could be many alternative combinations that could achieve the same outcome; the choice to use one test instead of another would depend on factors such as availability, ease of use, in-country product support and cost.

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