Homeless Persons: Persons who have no permanent residence. The concept excludes nomadic peoples.Public Housing: Housing subsidized by tax funds, usually intended for low income persons or families.Homeless Youth: Runaway and homeless children and adolescents living on the streets of cities and having no fixed place of residence.Mobile Health Units: Movable or portable facilities in which diagnostic and therapeutic services are provided to the community.Pediculus: Lice of the genus Pediculus, family Pediculidae. Pediculus humanus corporus is the human body louse and Pediculus humanus capitis is the human head louse.Health Planning Organizations: Organizations involved in all aspects of health planning activities.AlabamaBehavioral Medicine: The interdisciplinary field concerned with the development and integration of behavioral and biomedical science, knowledge, and techniques relevant to health and illness and the application of this knowledge and these techniques to prevention, diagnosis, treatment, and rehabilitation.Trench Fever: An intermittent fever characterized by intervals of chills, fever, and splenomegaly each of which may last as long as 40 hours. It is caused by BARTONELLA QUINTANA and transmitted by the human louse.Phthiraptera: An order of small, wingless parasitic insects, commonly known as lice. The suborders include ANOPLURA (sucking lice); AMBLYCERA; ISCHNOCERA; and Rhynchophthirina (elephant and warthog lice).Lice Infestations: Parasitic attack or subsistence on the skin by members of the order Phthiraptera, especially on humans by Pediculus humanus of the family Pediculidae. The hair of the head, eyelashes, and pubis is a frequent site of infestation. (From Dorland, 28th ed; Stedman, 26th ed)Housing: Living facilities for humans.Los AngelesTokyoAttitude to Death: Conceptual response of the person to the various aspects of death, which are based on individual psychosocial and cultural experience.Tuberculosis: Any of the infectious diseases of man and other animals caused by species of MYCOBACTERIUM.Substance-Related Disorders: Disorders related to substance abuse.Health Services Accessibility: The degree to which individuals are inhibited or facilitated in their ability to gain entry to and to receive care and services from the health care system. Factors influencing this ability include geographic, architectural, transportational, and financial considerations, among others.Terminal Care: Medical and nursing care of patients in the terminal stage of an illness.Infectious Disease Transmission, Patient-to-Professional: The transmission of infectious disease or pathogens from patients to health professionals or health care workers. It includes transmission via direct or indirect exposure to bacterial, fungal, parasitic, or viral agents.Bartonella quintana: A species of gram-negative bacteria in which man is the primary host and the human body louse, Pediculus humanus, the principal vector. It is the etiological agent of TRENCH FEVER.Anniversaries and Special Events: Occasions to commemorate an event or occasions designated for a specific purpose.Commerce: The interchange of goods or commodities, especially on a large scale, between different countries or between populations within the same country. It includes trade (the buying, selling, or exchanging of commodities, whether wholesale or retail) and business (the purchase and sale of goods to make a profit). (From Random House Unabridged Dictionary, 2d ed, p411, p2005 & p283)Aztreonam: A monocyclic beta-lactam antibiotic originally isolated from Chromobacterium violaceum. It is resistant to beta-lactamases and is used in gram-negative infections, especially of the meninges, bladder, and kidneys. It may cause a superinfection with gram-positive organisms.Gypsies: Ethnic group originating in India and entering Europe in the 14th or 15th century.Sense of Coherence: A view of the world and the individual's environment as comprehensible, manageable, and meaningful, claiming that the way people view their life has a positive influence on their health.ItalyHazardous Waste: Waste products which threaten life, health, or the environment when improperly treated, stored, transported, disposed of, or otherwise managed.Obsessive Hoarding: Persistent difficulty discarding or parting with possessions, regardless of the value of these possessions. Epidemiological studies suggest that hoarding occurs in 2-5% of the population and can lead to substantial distress and disability, as well as serious public health consequences.Politics: Activities concerned with governmental policies, functions, etc.Trustees: Board members of an institution or organization who are entrusted with the administering of funds and the directing of policy.WashingtonSupreme Court Decisions: Decisions made by the United States Supreme Court.Civil Rights: Legal guarantee protecting the individual from attack on personal liberties, right to fair trial, right to vote, and freedom from discrimination on the basis of race, color, religion, sex, age, disability, or national origin. (from http://www.usccr.gov/ accessed 1/31/2003)Single Person: The unmarried man or woman.Jurisprudence: The science or philosophy of law. Also, the application of the principles of law and justice to health and medicine.Persons: Persons as individuals (e.g., ABORTION APPLICANTS) or as members of a group (e.g., HISPANIC AMERICANS). It is not used for members of the various professions (e.g., PHYSICIANS) or occupations (e.g., LIBRARIANS) for which OCCUPATIONAL GROUPS is available.San FranciscoHepatitis, Chronic: INFLAMMATION of the LIVER with ongoing hepatocellular injury for 6 months or more, characterized by NECROSIS of HEPATOCYTES and inflammatory cell (LEUKOCYTES) infiltration. Chronic hepatitis can be caused by viruses, medications, autoimmune diseases, and other unknown factors.Hepatitis C: INFLAMMATION of the LIVER in humans caused by HEPATITIS C VIRUS, a single-stranded RNA virus. Its incubation period is 30-90 days. Hepatitis C is transmitted primarily by contaminated blood parenterally, and is often associated with transfusion and intravenous drug abuse. However, in a significant number of cases, the source of hepatitis C infection is unknown.New York CityPolice: Agents of the law charged with the responsibility of maintaining and enforcing law and order among the citizenry.Patient Care Team: Care of patients by a multidisciplinary team usually organized under the leadership of a physician; each member of the team has specific responsibilities and the whole team contributes to the care of the patient.Emergency Shelter: Temporary shelter provided in response to a major disaster or emergency.Cultural Deprivation: The absence of certain expected and acceptable cultural phenomena in the environment which results in the failure of the individual to communicate and respond in the most appropriate manner within the context of society. Language acquisition and language use are commonly used in assessing this concept.Community-Institutional Relations: The interactions between members of a community and representatives of the institutions within that community.Webcasts as Topic: Transmission of live or pre-recorded audio or video content via connection or download from the INTERNET.Moral Obligations: Duties that are based in ETHICS, rather than in law.Morals: Standards of conduct that distinguish right from wrong.Students, Nursing: Individuals enrolled in a school of nursing or a formal educational program leading to a degree in nursing.Pharmacology, Clinical: The branch of pharmacology that deals directly with the effectiveness and safety of drugs in humans.Human Characteristics: The fundamental dispositions and traits of humans. (Merriam-Webster's Collegiate Dictionary, 10th ed)