As the Coronavirus pandemic continues to spread around the world, indigenous groups are especially worried.
They tend to be more susceptible than the general public to viral infections.
And often they have little or no access to modern healthcare.
They fear COVID-19 could decimate their communities, as has happened in the past.
They trust their ancestral medicines to protect them. But at the same time some have become aware that they are facing the unknown.
Correspondent Gerry Hadden brings us the story of how two indigenous tribes in Peru prepared to face the pandemic.