The network, led by pastor Robert Baldwin and part-funded by Sam Little from Arlesey in Bedfordshire, is one of the most extensive efforts yet to distribute the “miracle cure” known as MMS, or “miracle mineral solution”. The Guardian has learned that poor Ugandans, including infants as young as 14 months old, are being given chlorine dioxide, a product that has no known health benefit and can be extremely dangerous.

Baldwin, 52, is importing bulk shipments of the components of MMS, sodium chlorite and citric acid, into Uganda from China. The two chemicals are mixed to produce chlorine dioxide, a powerful bleach used in the textile industry.

The American pastor has “trained” about 1,200 clerics in Uganda on administering the “miracle cure” and each in turn uses it to treat about 50 congregants, usually after Sunday service. As an inducement, Baldwin is offering smartphones to those clerics who are especially “committed” to spreading the bleach cure.