India, Dec. 31 -- Sanitation access has expanded across Africa, but treatment and safe disposal of waste remain dangerously inadequate.

Fewer than one in three people in sub-Saharan Africa have access to safely managed sanitation, despite rising toilet coverage.

Untreated wastewater and faecal sludge continue to contaminate rivers, ecosystems and urban settlements.

Weak infrastructure, underperforming treatment plants and poor governance are undermining sanitation gains.

Sanitation coverage across many African countries has improved steadily over the last two decades. Toilets, pit latrines and septic systems are more common today than they were at the turn of the century, particularly in urban and peri-urban areas. Yet, despite this v...