Figure 2

![Figure 2: Risk of bias assessment or evidence summary for the included studies evaluating elderberry supplements for respiratory viral infection outcomes.]()

> Source: L Susan Wieland et al. "Elderberry for prevention and treatment of viral respiratory illnesses: a system." *BMC complementary medicine and therapies*, 2021. PMID: [33827515](https://pubmed.ncbi.nlm.nih.gov/33827515/)

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  <img src="" alt="Risk of bias assessment or evidence summary for the included studies evaluating elderberry supplements for respiratory viral infection outcomes." />
  <figcaption>Figure 2. Risk of bias assessment or evidence summary for the included studies evaluating elderberry supplements for respiratory viral infection outcomes.<br>  Source: L Susan Wieland et al. "Elderberry for prevention and treatment of viral respiratory illnesses: a system." <em>BMC complementary medicine and therapies</em>, 2021. PMID: <a href="https://pubmed.ncbi.nlm.nih.gov/33827515/">33827515</a></figcaption>
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