Findings from the evaluation of the National Influenza Sentinel Surveillance System in Tanzania,2019.

Findings from the evaluation of the National Influenza Sentinel Surveillance System in Tanzania,2019.</p

Weekly distribution of influenza cases in Tanzania from January to December 2019 (N = 373).

Weekly distribution of influenza cases in Tanzania from January to December 2019 (N = 373).</p

The distribution of the SARI patients under the National Influenza Sentinel Surveillance System and the average samples collected per study sentinel sites in Tanzania, 2019.

The distribution of the SARI patients under the National Influenza Sentinel Surveillance System and the average samples collected per study sentinel sites in Tanzania, 2019.</p

Verification of the number of samples sent to NIC by using registers from sentinel sites and Laboratory information system (LIS).

Verification of the number of samples sent to NIC by using registers from sentinel sites and Laboratory information system (LIS).</p

The proportion of incompleteness of selected parameters on influenza case-based forms used by the National Influenza Sentinel Surveillance System in Tanzania, 2019 (N = 415).

The proportion of incompleteness of selected parameters on influenza case-based forms used by the National Influenza Sentinel Surveillance System in Tanzania, 2019 (N = 415).</p

Data flow of the National Influenza Sentinel Surveillance System in Tanzania.

Data flow of the National Influenza Sentinel Surveillance System in Tanzania.</p

Updated guidelines for evaluating public health surveillance systems.

Updated guidelines for evaluating public health surveillance systems.</p

Turnaround coverage among the sentinel sites of the National Influenza Sentinel Surveillance System (NISSS) in Tanzania, January to December 2019.

Turnaround coverage among the sentinel sites of the National Influenza Sentinel Surveillance System (NISSS) in Tanzania, January to December 2019.</p

Data collection tool for the evaluation of the National Influenza Surveillance System in Tanzania.

Data collection tool for the evaluation of the National Influenza Surveillance System in Tanzania.</p

Distribution of influenza types in Tanzania according to case definition used among confirmed cases of influenza from January to December 2019 (N = 373).

Distribution of influenza types in Tanzania according to case definition used among confirmed cases of influenza from January to December 2019 (N = 373).</p