All posts by Kathryne Dieter

NTD Success Story: Guatemala Eliminates Onchocerciasis Transmission in Huehuetenango

Another battle in the fight against neglected tropical diseases (NTDs) has been won in Guatemala, where onchocerciaisis transmission has been eliminated in Huehuetenango.

A recent article in the Journal of Parasitology Research evaluated onchocerciasis transmission in the department of Huehuetenango in western Guatemala after 22 rounds of mass drug administration (MDA) over 13 years. In 2007-2008, prevalence of infection was determined to be zero percent through eye examinations of residents, antibody detection in school children and parasite detection in black flies. Following the results of this evaluation, mass treatment was halted in 2009 and post treatment surveillance of parasite prevalence in black flies was conducted from 2009-2011. Infection remained at zero percent, validating that transmission had been eliminated in the area.

Onchocerciasis, also known as river blindness, is caused by the parasite Onchocerca volvulus and is transmitted to humans by the bite of black flies. Infection with the parasite can produce nodules, inflammation, discoloration and itching of the skin, as well as lesions that can lead to blindness. Onchocerciasis is found in 37 countries across the world.

The Onchocerciasis Elimination Program of the Americas, or OEPA, was established in 1992 with the goal of supporting national programs in LAC countries to provide twice yearly MDA of ivermectin to a minimum of 85 percent of the eligible population at risk. The Guatemala Ministry of Public Health, with the assistance from OEPA, began MDA for onchocerciasis in 1996, and since 2002 has reached the targeted coverage of the eligible population through twice-yearly MDA. There were four endemic foci for onchocerciasis in Guatemala. Before this study, transmission in two of the four foci had already been declared eliminated. With this recent evidence of elimination in Huehuetenango and with post treatment surveillance being conducted in the fourth foci, Guatemala is well on its way to request the WHO certification of nation-wide elimination in 2015.

Pros and Cons of Integration- Logistical Challenges of Deworming Programs in Nicaragua

In the face of many obstacles, Nicaragua’s history in ensuring a national deworming program has shed light on the potential for success.  Former Global Network intern, Frankie Lucien, and fellow George Washington University Masters student Cara Janusz, traveled to Nicaragua and investigated the challenges and achievements of the Nicaragua experience and developed a case study with support from Children Without Worms.

This week End the Neglect is featuring a six-part series of blog posts covering interesting elements of the Nicaragua experience highlighted in the case study, entitled “Worms and WASH(ED)”.

A community health post during Vaccination Week in Nicaragua.

Ensuring access to treatment for intestinal parasites requires coordination of donors, governments, and organizations at all levels. One critical factor in this is integration. The integration of health programs can have many benefits over vertical stand-alone programs. Integration can be more cost-effective, and can lead to savings in financial and personnel costs.

So what exactly is integration? Many times, there are partnerships, funding, or programs for a single disease. Integration involves combining these programs to improve delivery to those who need them with the resources and commitments that are already in place. In the paper by Grépin and Reich, integration can involve joining certain activities or policy functions of different programs together, merging these programs or creating a new organization. Beyond integration of the seven NTDs, integration can also be seen by combining NTD interventions with other public health programs.

In the case of Nicaragua, deworming efforts have been incorporated into the Ministry of Health’s National Immunization Campaign (EPI). Once a year, mebendazole is given to children along with vaccinations and vitamin A supplements through schools, health posts, and later “mop up” campaigns to cover non-enrolled school-age children. Program integration makes sense as their targets are interconnected. For example, mass drug administration of intestinal parasites is combined with hygiene programs such as WASH (water, sanitation, and hygiene education) and Escuelas Saludables in Nicaragua. Deworming efforts paired with education on proper hygiene practices and clean water promotes a sustainable solution to tackling both issues at the same time.

Integration, however, is not perfect. The partnership between the Ministry of Health (MINSA) and Children Without Worms has led to covering 87 percent of school-age children with treatment for intestinal worms in 2010, which surpasses the WHO coverage target of 75 percent. There are other NGOs, as was described in an earlier part of this series, that donate drugs separately, and a lack of communication between these NGOs and the MINSA makes tracking drug administration difficult in parts of the country. For example, children under five should be provided with chewable tablets of mebendazole for safer administration. However, there is no way of tracking if they received these particular types of tablets, and, as the case study points, teachers in Leon reported that children as young as three were receiving the non-chewable forms of the drug. It was also unclear as to where the tablets came from. Other logistical challenges arise in unforeseen situations because two programs coming together bring different experiences. When mebendazole was administered  through the immunization campaign, neither water nor cups were provided for children to take the tablets.  As the program expands and works out the kinks in combining these two campaigns, detailed coordination to ensure the proper distribution of the drugs and improve logistics will be key.

In the long run, integration is a sustainable method for leveraging existing health programs in developing nations to address synergistic public health challenges.  In reality, however, there are glitches and nuances in the system, which take time to work out. Getting all the puzzle pieces to the table is only part of the challenge; the puzzle pieces must then all fit together to fully cover the target population, leaving no gaps.

 

To read more about the case study “Worms and WASH(ED)” please click here.

 

History of Health Systems in Nicaragua

In the face of many obstacles, Nicaragua’s history in ensuring a national deworming program has shed light on the potential for success.  Former Global Network intern, Frankie Lucien, and fellow George Washington University Masters student Cara Janusz, traveled to Nicaragua and investigated the challenges and achievements of the Nicaragua experience and developed a case study with support from Children without Worms.

This week End the Neglect will be featuring a six-part series of blog posts covering interesting elements of the Nicaragua experience highlighted in the case study, entitled “Worms and WASH(ED)”. 

We’re kicking off the series with a brief history of health systems in Nicaragua and how it has shaped current public health efforts in the country.

Nicaragua’s health system today has been shaped by a civil war, poverty, and changes in the political landscape over the decades. In the 1980s, under the Frente Sandinista de Liberacion Nacional (FSLN) government, healthcare and education were expanded through an effort of government centralization to focus on the population as a whole. These efforts were hampered when contra military strategies killed healthcare workers and destroyed facilities to destabilize the social system.  The conflict led to the displacement of populations to urban areas contributing to the spread of disease, including intestinal parasite infections. Shifts in political power also contributed to fluctuations of instability within the health system. During the 1990s, an era of liberal governments shifted to a more private sector healthcare market, with the formation of fees in public health facilities and creation of the Sistema Local de Atención Integral en Salud (SILAIS). This privatization led to health inequities, particularly in poor and rural communities. When the FSLN regained power in 2007, restrictions were placed on the private sector and there was a return to government centralization. User fees were removed and a community outreach component was created through SILAIS.

Despite the political turmoil, Nicaragua was able to put into place a national vaccination program that eventually incorporated treatment of intestinal parasites. Following polio outbreaks in 1979, Nicaragua’s Ministry of Health initiated the National Immunization Program (EPI).  Conducted three times a year, the program led to reduced vaccine-preventable disease in children. Following increased social acceptance, the EPI began integrating other health programs along with vaccinations, including deworming and vitamin A distribution. By 1994, mass treatment of intestinal parasites was formally incorporated into the campaign.

In 2001, the 54th World Health Assembly placed a renewed emphasis on the control of STH infections globally with the creation of Resolution 54.19, whose purpose was to “reach75 percent coverage of all school aged children with preventative chemotherapy to control STH infection by 2010”. Nicaragua had already been incorporating mass treatment of intestinal parasites for seven years via their annual vaccination campaigns. The vaccination campaigns, which had been running since 1979, provided a stable health infrastructure in which to incorporate deworming activities. These annual campaigns are still used today for deworming and target pre-school and school-aged children, utilizing health posts and schools to deliver treatments.

To read more about the case study “Worms and WASH(ED)” please click here.

 

Jon Secada Recognized for Raising Hepatitis Awareness as PAHO Celebrates World Hepatitis Day

The Pan American Health Organization (PAHO) held a special event yesterday on World Hepatitis Day, recognizing three-time GRAMMY award winner Jon Secada for his work to bring about hepatitis awareness in the Americas. During the event, Jon Secada spoke about his personal experience losing his father to hepatitis C last year. He also spoke of his commitment to educating people in the Americas on the hepatitis viruses throughout his career and through the organization- along with Gregg Allman and Natalie Cole- “Tune In to Hep C”.

Dr. Luis Gerardo Castellanos, PAHO Senior Advisor on communicable diseases, discussed the situation of viral hepatitis in Latin America and the Caribbean (LAC). He stressed the importance of fighting all five types of hepatitis and the right of everyone infected to be given equal attention. The event also highlighted success stories in Argentina and Cuba, as well as a commitment to scale-up prevention strategies in Jamaica. Closing remarks by Dr. Steven Ault, PAHO Regional Advisor on neglected infectious diseases, emphasized spreading awareness and having compassion for those suffering from hepatitis.

The region has taken steps to carry out a World Health Assembly resolution to reduce disease burden in the region All LAC countries have incorporated hepatitis B vaccines into their immunization programs, and Argentina, Panama and Uruguay have also included vaccinations for hepatitis A. Additionally, PAHO has created the Viral Hepatitis Working Group to provide technical assistance and other support to countries working to build their response to hepatitis. Continue reading