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Supplement with Brazilian propolis makes deadly viruses less dangerous
After being infected with a potentially deadly influenza virus, supplementation with an extract of Brazilian propolis can keep laboratory animals alive that would otherwise have died. Phytochemicals in Brazilian propolis inhibit influenza virus replication.
Brazilian propolis is made by half-African bees that forage on the South American tree Baccharis dracunculifolia. A prominent active in Brazilian propolis is artepillin C, a phenol.
The highest dose administered by the researchers was 10 milligrams of Brazilian propolis extract per kilogram of body weight, three times a day. The human equivalent of that dose is about three doses of 80 milligrams of extract each per day.
In another experiment, the researchers infected mice with the virus and then gave them a daily dose of Brazilian propolis or the pharmacological virus inhibitor oseltamivir. A control group received no active substances.
Next, the researchers determined how many viruses were in the lungs of the mice, and found that Brazilian propolis reduced the concentration of viruses in the lungs compared to the control group. Apparently substances in the extract inhibit the replication of viruses.