As evangelical Christians use their influence with Brazil’s government to cast their net ever wider, indigenous people vulnerable to common diseases face a growing threat

A radical group of evangelical Christian missionaries set on converting every last tribe on Earth has raised fears that deadly diseases – and even the coronavirus – will spread in the Brazilian Amazon. The group has based its newly bought helicopter right beside a reserve with the world’s highest concentration of isolated indigenous groups, who have little resistance to common illnesses.

There are more than 100 isolated indigenous groups in Brazil, all highly vulnerable to common diseases such as measles and flu, and 16 of them live in the same reserve in the Javari Valley, a vast, remote area the size of Austria. Covid-19 could wipe out any of them.