<p>Of 9,271 patients recruited, 3,107 (33.5%) had ILI, 4,172 (45.0%) had SARI, and 1,992 (21.5%) did not meet a case definition (although 98.8% reported fever and 60.4% reported cough). Of patients with ILI or SARI, 3,726 (51.2%) were male, and the median age was 17.4 years. Overall, 659 (9.1%) ILI/SARI patients tested SARS-CoV-2 positive (10.5% in ILI patients and 8.0% in SARI patients [p&lt;0.01]), with substantial variation by month (range 0.0% [October 2022]-34.1% [December 2021], [p&lt;0.01]). Patients recruited during waves had greater odds of testing SARS-CoV-2 positive than those from non-wave periods (odds ratio [OR]: 2.9 (95% confidence interval [CI]: 2.4-3.4). Patients aged ≥18 years (OR: 1.9; 95% CI: 1.6-2.2) and those who reported active tuberculosis (OR: 4.0; 95% CI:1.3-12.9]) had greater odds of testing SARS-CoV-2 positive.</p>