Echinacea is an herb that some people take to improve immune system function. It may be beneficial for preventing and treating respiratory infections in some children, but more research is necessary.

Evidence of echinacea’s effect on COVID-19 is still very limited, though one previous study showed that a specific dosage of Echinacea purpurea can have an effect in preventing respiratory tract ...

Echinacea may work by increasing the response of natural killer cells and other immune system fighters, and also by blocking the action of some viral proteins, says Dr. Andreas Schapowal, first ...

Study: Echinacea purpurea for the Long-term Prevention of Viral Respiratory Tract Infections during COVID-19 Pandemic: A Randomized, Open, Controlled, Exploratory Clinical Study.

Even the familiar Echinacea that you see growing in nursery pots — the basic E. purpurea, or purple coneflower — isn’t quite itself anymore.

Echinacea significantly prevented enveloped virus infections (blue bar, * p=0.0114) and thereof coronaviruses 229E, HKU, NL63 and OC43 (orange bar, ♯ p>0.05) as measured by Jawad et al. 2012.

The ongoing love affair with coneflowers is only growing stronger with the introduction of so many new varieties.

Purple coneflowers are a favorite among many gardeners. Known botanically as Echinacea purpurea, this North American native perennial produces colorful magenta blooms in late summer and is a ...