Malaria in Nicaragua: community-based control efforts and the impact of war.

This descriptive study of temporal trends and geographical distribution examines the effects of prolonged low-intensity warfare on the community-based malaria control efforts. Nicaragua's post-1979 malaria control programme is based on community participation in health education and in mosquito breeding site drainage, expanded case finding, and increased availability of chemotherapy. Mosquito resistance and increasing costs have forced a reduction in the use of residual pesticides. The number of reported malaria cases in the country fell from 25,465 in 1980 to 15,702 in 1984, while the ratio of blood smears to total population increased from 86 to 137 per 1000 people. Malaria incidence in the eight states of the country under heaviest military attack in the current war was compared to incidence in the eight states least affected by the war. In the war zone there was a 17% excess in cases from August 1983-April 1985 above a 1974-82 baseline average, while there was a 62% decline in the number of cases in the non-war zone.

War-related changes in health and health services in Nicaragua.

The low-intensity war against Nicaragua from 1983 to 1987 has had a wide reaching impact on health, health services, and health economics in that country. Beyond the death of individuals and destruction of facilities, economic embargo and contra destruction have cost the health system about 200 billion cordobas between 1981 and 1987. This is approximately equal to the value of 2 years of the entire health budget. The war has resulted in decreased accessibility and availability of services, leaving about 10% of the population without access to modern health facilities. Perhaps 10% of the demand for acute care services is generated by the war, which has resulted in a reorganization of surgical and medical services. Long term care needs for psychiatric illness and rehabilitation services are far more extensive. Population movements and resettlement, where preventive care has been unavailable, are associated with epidemics of malaria, diarrheal diseases, measles, leishmaniasis, meningitis, and tuberculosis. Health services remain a high priority of the government as health care is viewed as a way to reduce the untoward effects of the war on the general population. Nonetheless, the indirect effects of the war have been detrimental to the system. Negative effect include the loss to the system of health professionals and rampant inflation. These forces contribute to the weakening of primary health programs and the reorientation of the national system into hospital based, curative medical services.

Health education and community participation in mass drug administration for malaria in Nicaragua.

A malaria control effort in Nicaragua involving the mass, short-term distribution of anti-malaria medicines to a target population of all citizens above one year of age is detailed. About 70% of the population received anti-malarials in November, 1981 and 8 million packets of chloroquine and primaquine were distributed by 70,000 health campaign workers and their assistants. Training and mobilization efforts used volunteers from local community organizations. Mass public education was a key focus in the weeks before drug administration. The effects of the campaign were immediately apparent with a rapid decline in incidence after drug administration. Ongoing community environmental control, case finding, and health education activities continued to improve the malaria situation post-campaign. Further, the campaign promoted the decentralization of malaria control activities and integration of the malaria efforts with the nationwide primary health care system.

Epidemiologic analysis of warfare. A historical review.

Although warfare is thought to be responsible for high and increasing levels of morbidity and mortality in the modern era, little comparative epidemiologic research is available on the subject. Most research on past wars has been carried out for purposes of military planning. The present report provides an overview of the direct health impacts of various wars on military and civilian populations during the last 200 years. Risk factors for injury and death are analyzed. Changes in weaponry, military strategy, and medical services are found to modify the health effects of warfare.

Social and demographic characteristics of nicaraguan health volunteers.

Although the training and mobilization of volunteer health aides is widely promoted in Third World countries, little is known about those who volunteer. A survey of Nicaraguan volunteers in 1982 revealed findings which are similar to results found elsewhere. Women, young people, and students have tended to be those groups which volunteer most often. Less is known about the level of responsibility and organizational affiliation of volunteers. In the Nicaraguan case, it was found that although most volunteers are female, they usually do not represent a women's organization. A majority of the volunteers represent non-traditional organizations or no organization at all. Those volunteers with greater responsibility tend to be older, better educated, are more likely to be female, and more commonly represent an organization which came into existence after the country's 1979 revolution. Changes in the organization of health promotion campaigns in Nicaragua are likely to soon influence the recruitment and retention of volunteers.

Changes in malaria incidence after mass drug administration in Nicaragua.

Mass drug administration (MDA) in 1981 reduced the incidence rates of both Plasmodium vivax and P falciparum infection in Nicaragua. Impact on P vivax cases lasted for four months and on P falciparum for seven. Subtherapeutic primaquine doses, the shorter extrinsic cycle of P vivax in the insect vector, and the timing of MDA at a high-transmission period of the year may explain the limited effects of the campaign. Positive results of the anti-malaria campaign included improvements in case-finding and routine surveillance, the apparent prevention of at least 9200 malaria cases, the training of some 70 000 antimalaria volunteers, and the participation of about 70% of the population in anti-malarial activities.

Health and health services in Central America.

Despite rapid economic growth since World War II, health conditions improved only slowly in most of Central America. This is a result of poor medical, social, and economic infrastructure, income maldistribution, and the poor utilization of health investments. The economic crisis of the 1980s and civil strife have further endangered health in the region. Life expectancy has fallen among men in El Salvador and civil strife has become the most common cause of death in Guatemala, Nicaragua, and El Salvador. Large-scale US assistance has done little to improve conditions, and refugees continue to pour into North America. It is estimated that there are more than a million refugees within Central America, while a million have fled to the United States. Costa Rica and Nicaragua are partial exceptions to this dismal health picture. An effective approach to the many health problems in Central America will require joint planning and cooperation among all countries in the region.

Health services reforms in revolutionary Nicaragua.

Before the Nicaraguan revolution of 1979, access to health services was largely limited to the affluent sectors of the urban population and the minority of workers with social security coverage. Repeated attempts at reform by organized medicine were ineffective. Since the revolution, a tremendous expansion in health services has occurred. The national health system receives approximately one-third of its funds from the social security system. Steadily increasing equity in access is a result of the promotion of primary care, health campaigns involving up to 10 per cent of the general population as volunteers, the use of paramedical aides, and foreign assistance. Private practice nevertheless remains strong. In the coming years, several complex issues must be examined, including: a balance in the number of nurses and doctors trained, the role of private practice, and the relationship of the Ministry of Health to the social security system. Further progress in health reforms may be delayed by the defensive war which Nicaragua is fighting on its northern and southern borders. Despite emergent health problems in the war zones, most of the innovative aspects of the health system remain intact as of this writing.

Health-related outcomes of war in Nicaragua.

Since 1983, war in Nicaragua has slowed improvements in health which had developed rapidly from 1979-82. The rate of war-related deaths among Nicaraguans now exceeds that of the United States citizens in either the Vietnam War or World War II. Forty-two of the 84 documented war-related casualties among Nicaraguan health workers have been deaths. This high case fatality rate reflects the targeting of health workers by contra troops. The number of staff and services of the public medical system decreased by approximately 10 per cent from 1983 to 1985. Population movements, the establishment of new settlements, and war-related destruction of the primary health infrastructure are associated with recent epidemics of malaria, dengue, measles, and leishmaniasis. The estimated rate of infant mortality in Nicaragua, which had declined from 120 per 1,000 in 1978 to 76/1,000 live births in 1983, has since shown no further decline. Internationally mandated protections enjoyed by civilians and health workers during times of war do not appear to operate in this so-called "low intensity" conflict. Further declines in infant mortality, prevention of epidemics, and improvement in other health indicators will likely await the cessation of military hostilities.