View clinical trials related to Communicable Diseases, Emerging.
Filter by:This is a prospective observational study to include participants with a spectrum of emerging or unknown pathogens with the objective to determine etiology and clinical characteristics of those diseases.
Rift Valley fever (RVF), a disease transmitted from livestock (cattle, sheep, goats, camels) to humans more commonly occurs in the East and Central Africa (ECA) regions where more than 15 major epidemics affecting more than one country have been reported over the past 50 years. Within the region, there are specific areas, referred to as hotspots, which support RVF virus maintenance via low-level virus circulation between animals, humans, and mosquitoes. Most outbreaks originate from these hotspots. Our goal is to conduct studies in RVF hotspots in four ECA countries, Kenya, Uganda, Tanzania, and Democratic Republic of Congo (DRC) to determine the burden of RVF disease among humans, wildlife and livestock during inter-epidemic periods (IEPs) and discover circulation of undetected infectious diseases. This information is important for use in developing an early warning system and possibly a vaccination strategy. The study will take place in Uganda, Kenya, Tanzania and Democratic Republic of Congo
Background: Vaccines against SARS-CoV-2, the virus that causes COVID-19, have been highly effective against preventing severe disease. But the protective effects of these vaccines appear to wane over time. Researchers want to learn why. Objective: To learn more about how the immune system responds to vaccines against infections like SARS-CoV-2. Eligibility: Healthy adults ages 18 or older who are scheduled to receive either a new vaccine or a booster shot against SARS-COV-2 or another emerging infection. Design: Participants will be screened with a medical history and blood and urine tests. Participants will have up to 8 study visits in 1 year. Each visit should last less than 2 hours. At each visit, participants will give blood samples. Some blood samples will be used for genetic testing. They will also give updates on their health. After the first study visit, participants will receive either a first vaccination or a booster shot. They must get the vaccine in their community or workplace. They will not get the vaccine at NIH. This study currently focuses on SARS-CoV-2, but it will expand to other infectious diseases as they emerge and become the target of new vaccines. ...
Background: - Increased clinical attention has been paid to the evaluation and management of bioterrorism-related illness (such as anthrax infection) and emerging infectious diseases (such as Severe Acute Respiratory Syndrome [SARS] and new strains of influenza). However, evaluation and treatment data for these illnesses are often limited because human infections to date have been relatively limited. Further knowledge about diseases of bioterrorism concern and emerging infectious diseases may lead to more effective forms of therapy to prevent disease-related illnesses and deaths. Objectives: - To apply standardized, documented, and carefully monitored evaluation and treatment methods for bioterrorism- and biodefense-related illnesses and emerging infectious diseases at the National Institutes of Health Clinical Center. Eligibility: - Individuals at least 2 years of age who have confirmed or suspected infection by a biodefense or bioterrorism agent, or an emerging infectious disease agent. - Individuals at least 2 years of age who have confirmed or suspected exposure to a biodefense or bioterrorism agent, an emerging infectious disease agent, or who have close exposure to an individual who is suspected of being infected with one of these agents. - Health care workers who are involved in medical treatment of the abovementioned infected or exposed individuals. Design: - All eligible persons will have an initial screening evaluation to determine the circumstances of possible infectious exposure (e.g., where, when, and how exposed), current medical condition and medical care given, and any aspects of medical history that might be relevant to the exposure. - Participants may be seen in an outpatient clinic or in the Special Clinical Studies Unit (SCSU) at the National Institutes of Health (NIH). The NIH SCSU is a hospital ward specially designed to minimize the risk of spreading infection to others. - Upon admission, participants will provide blood and urine samples, have an electrocardiogram to measure heart activity, and have specific tests or procedures associated with the particular infectious agent. - Participants who develop illnesses will be treated with the standard of care for known diseases or with experimental measures, depending on the nature of the illness. Separate consent may be required for these treatments. - Participants will remain on this study for at least 1 year following the period of active evaluation and treatment. Participants may be asked to come to the NIH outpatient clinic on a periodic basis for medical evaluations and blood tests, and may be asked to keep a diary card to record any unusual signs or symptoms of possible infection.