Oncohema Key

Epidemiology of Helminth Infections Clive J. Shiff INTRODUCTION Parasitism is a way of life. Over evolutionary time, the niche by which one species depends on another for subsistence has been…

The Epidemiology and Control of Malaria William J. Moss Richard H. Morrow BACKGROUND, HISTORY, AND PUBLIC HEALTH IMPORTANCE History of Malaria Control Vertebrates, mosquitoes, and plasmodia have been interacting and…

Emerging Vector-Borne Diseases Kenrad E. Nelson INTRODUCTION In the last two decades, several vector-borne infections have emerged as major causes of human morbidity and mortality. A dramatic recent example is…

Lyme Disease Diane E. Griffin INTRODUCTION In 1975, a concerned mother from Old Lyme, Connecticut (Figure 26-1), reported to the Connecticut State Health Department that 12 children in her small…

Sexually Transmitted Diseases Charlotte A. Gaydos INTRODUCTION In the United States, 19 million new cases of sexually transmitted diseases (STDs) occur annually, costing $10-17 billion per year and primarily affecting…

Viral Hepatitis Kenrad E. Nelson David L. Thomas INTRODUCTION Hepatitis is inflammation of the liver, which may be caused by viral or other infections, toxins, and a number of other…

Human Immunodeficiency Virus Infections and the Acquired Immunodeficiency Syndrome Kenrad E. Nelson David D. Celentano INTRODUCTION The human immunodeficiency virus (HIV) epidemic is as modern an epidemic as it is…

Transmissible Spongiform Encephalopathies Kenrad E. Nelson INTRODUCTION In the last 38 years, a radically new class of infectious agents—the spongiform encephalopathies—has been recognized as the cause of several diseases of…

Diarrheal Diseases Robert E. Black Christa L. Fischer Walker Claudio F. Lanata INTRODUCTION Diarrheal diseases are an important global problem, causing high rates of morbidity and mortality, particularly in developing…

The Epidemiology of Acute Respiratory Infections Kenrad E. Nelson Mark C. Steinhoff INTRODUCTION As recently as 1997, acute respiratory infections (ARI) were termed a “forgotten pandemic.”1 These infections, which include…