These lessons from rural Africa could help eradicate poverty-related tropical diseases in the U.S. South

Climate change has led to shorter, more violent rainy seasons in the highlands around Lima, Peru, meaning that - even though there is theoretically enough water during the rainy season to sustain the local population, it flows downhill too quickly, leaving residents short of clean water during the dry season. Now, an organization called Condesan is helping the community to restore ancient stone canals from the seventh century that will help to store water from rainfall through the dry season and supply residents with a steady water source.

A collaboration between architectural designers and medical providers created a cholera treatment clinic in Port-au-Prince where the design of the building itself supports treatment. The building is well ventilated and filled with natural light, provides an open space for providers to see many patients and be able to respond in case of crisis, and has the ability to collect and treat water.

Uganda’s education ministry requires all schools to have incinerators to burn used sanitary pads. Lack of funding limits schools’ ability to comply. Even when incinerators exist, girls don’t necessarily use them. Educating both girls and boys about menstruation reduces stigma and increases the likelihood that girls feel comfortable enough to collect pads instead of throwing them in pit latrines.

The Anacostia, which has long been one of the most polluted rivers in the country, has been given a new lease on life, thanks to cleanup efforts and a recent sewer upgrade in D.C. Since water quality has improved, there's been renewed interest in waterfront recreation and development. Now local groups are working to mitigate displacement from gentrification, with some success.

The poliovirus has plagued Nigeria for years, but the country is approaching near-eradication thanks to community public health workers' efforts to increase education, immunization and reporting. Throughout the country workers known as Disease Surveillance and Notification Officers are trained to recognize the symptoms of polio so the cases can be reported and addressed immediately. Coupled with the efforts of community informants, this approach has already resulted in parts of Nigeria becoming polio-free.

After learning that poor hygiene and sanitation practices often leads to an increase in diseases, on man in Kenya decided to install pit latrines for his community to lead by example. This practice, along with other approaches such as handwash stations, has now spread to other communities and has shown a decrease in illnesses throughout the villages.

The simple addition of adding handles to bathroom stalls in the Rohingya refugee camps in Bangladesh has helped the camps' pregnant women regain a sense of empowerment and dignity. Providing support and balance, the design of these latrines have benefited the elderly in the camps as well.

The United States and Italy have been playing catch up in the mitigation of the coronavirus pandemic and were resistant to implementing social distancing, while other countries took more aggressive approaches. Now both countries are looking to China and South Korea to learn how sweeping actions and industrialized scaling of measures such as fever clinics, temperature check points, portable CAT scanning, and social isolation, have helped to contain the pandemic.

The HIV/AIDS clinical trial network’s 30 sites have spent years building trust among historical marginalized communities so that more clinical trial participants come from communities of color. Educational outreach, awareness-raising efforts, and one-on-one conversations are among the strategies used to make the scientific process more transparent. The engagement model is upfront about abuses from the past and uses straightforward explanations with no medical jargon. Infectious disease experts are using the trust-building model to increase the racial diversity of participants in COVID-19 vaccine trials.

Teams of Community Direct Distributors (CDD) are leading drug distribution campaigns to prevent and eliminate neglected tropical diseases in hard-to-reach, rural areas. These CDDs are members of the community they serve and are trained to educate the locals on disease prevention and administer the drugs themselves. With the CDDs’ help, several states have already eliminated some diseases and greatly reduced the spread of others.