Thumbi Ndung'u
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Thumbi Ndung'u
Thumbi Ndung’u is a Kenyan-born HIV/AIDS researcher. He is the deputy director (Science) and Max Planck Research GroupLeader at thAfrica Health Research Institute (AHRI)in Durban, South Africa. He is Professor of Infectious Diseases in thDivision of Immunity and Infection, University College London  He is Professor anVictor DaitzChair in HIV/TB Research and Scientific Director of thHIV Pathogenesis Programme (HPP)at thNelson R. Mandela School of Medicine University of KwaZulu-Natal. He holds the South African Research Chair in Systems Biology of HIV/AIDS. He is an Adjunct Professor of Immunology and Infectious Diseases at the Harvard T.H. Chan School of Public Health. He is the Programme Director of thSub-Saharan African Network for TB/HIV Research Excellence (SANTHE) a research and capacity building initiative funded by the African Academy of Sciences and the Wellcome Trust. Ndung’u attended Gathugu Primary School in Kiambu, Kenya and Nyeri High School, Nyeri, Kenya. He grad ...
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HIV/AIDS
Human immunodeficiency virus infection and acquired immunodeficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV), a retrovirus. Following initial infection an individual may not notice any symptoms, or may experience a brief period of influenza-like illness. Typically, this is followed by a prolonged incubation period with no symptoms. If the infection progresses, it interferes more with the immune system, increasing the risk of developing common infections such as tuberculosis, as well as other opportunistic infections, and tumors which are rare in people who have normal immune function. These late symptoms of infection are referred to as acquired immunodeficiency syndrome (AIDS). This stage is often also associated with unintended weight loss. HIV is spread primarily by unprotected sex (including anal and vaginal sex), contaminated blood transfusions, hypodermic needles, and from mother to ch ...
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Harvard Medical School
Harvard Medical School (HMS) is the graduate medical school of Harvard University and is located in the Longwood Medical Area of Boston, Massachusetts. Founded in 1782, HMS is one of the oldest medical schools in the United States and is consistently ranked first for research among medical schools by '' U.S. News & World Report''. Unlike most other leading medical schools, HMS does not operate in conjunction with a single hospital but is directly affiliated with several teaching hospitals in the Boston area. Affiliated teaching hospitals and research institutes include Dana–Farber Cancer Institute, Massachusetts General Hospital, Brigham and Women's Hospital, Beth Israel Deaconess Medical Center, Boston Children's Hospital, McLean Hospital, Cambridge Health Alliance, The Baker Center for Children and Families, and Spaulding Rehabilitation Hospital. History Harvard Medical School was founded on September 19, 1782, after President Joseph Willard presented a report with ...
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National Research Foundation (South Africa)
South Africa’s National Research Foundation (NRF) is the intermediary agency between the policies and strategies of the Government of South Africa and South Africa's research institutions. It was established on 1 April 1999 as an autonomous statutory body in accordance with the ''National Research Foundation Act''. Dr Fulufhelo Nelwamondo has been appointed as Chief Executive Officer of the National Research Foundation of South Africa with effect from 1 April 2021. The NRF Board is chaired by Dr Nompumelelo Obokoh. Functions The NRF has three main functions: #to support research and innovation, through its agency, ''Research and Innovation Support and Advancement'' (RISA); #to encourage an interest in science and technology through its business unit, the South African Agency for Science and Technology Advancement' (SAASTA); # to facilitate high-end research through its ''National Research Facilities'' (South African Institute for Aquatic Biodiversity; Hartebeesthoek Radi ...
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Therapy
A therapy or medical treatment (often abbreviated tx, Tx, or Tx) is the attempted remediation of a health problem, usually following a medical diagnosis. As a rule, each therapy has indications and contraindications. There are many different types of therapy. Not all therapies are effective. Many therapies can produce unwanted adverse effects. ''Medical treatment'' and ''therapy'' are generally considered synonyms. However, in the context of mental health, the term ''therapy'' may refer specifically to psychotherapy. History Before the creating of therapy as a formal procedure, people told stories to one another to inform and assist about the world. The term "healing through words" was used over 3,500 years ago in Greek and Egyptian writing. The term psychotherapy was invented in the 19th century, and psychoanalysis was founded by Sigmund Freud under a decade later. Semantic field The words ''care'', ''therapy'', ''treatment'', and ''intervention'' overlap in a s ...
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Preventive Healthcare
Preventive healthcare, or prophylaxis, consists of measures taken for the purposes of disease prevention.Hugh R. Leavell and E. Gurney Clark as "the science and art of preventing disease, prolonging life, and promoting physical and mental health and efficiency. Leavell, H. R., & Clark, E. G. (1979). Preventive Medicine for the Doctor in his Community (3rd ed.). Huntington, NY: Robert E. Krieger Publishing Company. Disease and disability are affected by environmental factors, genetic predisposition, disease agents, and lifestyle choices, and are dynamic processes which begin before individuals realize they are affected. Disease prevention relies on anticipatory actions that can be categorized as primal, primary, secondary, and tertiary prevention. Each year, millions of people die of preventable deaths. A 2004 study showed that about half of all deaths in the United States in 2000 were due to preventable behaviors and exposures. Leading causes included cardiovascular disease ...
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Tuberculosis
Tuberculosis (TB) is an infectious disease usually caused by '' Mycobacterium tuberculosis'' (MTB) bacteria. Tuberculosis generally affects the lungs, but it can also affect other parts of the body. Most infections show no symptoms, in which case it is known as latent tuberculosis. Around 10% of latent infections progress to active disease which, if left untreated, kill about half of those affected. Typical symptoms of active TB are chronic cough with blood-containing mucus, fever, night sweats, and weight loss. It was historically referred to as consumption due to the weight loss associated with the disease. Infection of other organs can cause a wide range of symptoms. Tuberculosis is spread from one person to the next through the air when people who have active TB in their lungs cough, spit, speak, or sneeze. People with Latent TB do not spread the disease. Active infection occurs more often in people with HIV/AIDS and in those who smoke. Diagnosis of active TB is ...
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Immune System
The immune system is a network of biological processes that protects an organism from diseases. It detects and responds to a wide variety of pathogens, from viruses to parasitic worms, as well as cancer cells and objects such as wood splinters, distinguishing them from the organism's own healthy tissue. Many species have two major subsystems of the immune system. The innate immune system provides a preconfigured response to broad groups of situations and stimuli. The adaptive immune system provides a tailored response to each stimulus by learning to recognize molecules it has previously encountered. Both use molecules and cells to perform their functions. Nearly all organisms have some kind of immune system. Bacteria have a rudimentary immune system in the form of enzymes that protect against virus infections. Other basic immune mechanisms evolved in ancient plants and animals and remain in their modern descendants. These mechanisms include phagocytosis, antimicrobial pe ...
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Host–pathogen Interaction
The host–pathogen interaction is defined as how microbes or viruses sustain themselves within host organisms on a molecular, cellular, organismal or population level. This term is most commonly used to refer to disease-causing microorganisms although they may not cause illness in all hosts. Because of this, the definition has been expanded to how known pathogens survive within their host, whether they cause disease or not. On the molecular and cellular level, microbes can infect the host and divide rapidly, causing disease by being there and causing a homeostatic imbalance in the body, or by secreting toxins which cause symptoms to appear. Viruses can also infect the host with virulent DNA, which can affect normal cell processes (transcription, translation, etc.), protein folding, or evading the immune response. Pathogenicity Pathogen history One of the first pathogens observed by scientists was ''Vibrio cholerae'', described in detail by Filippo Pacini in 1854. His initia ...
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South African Medical Research Council
The South African Medical Research Council (SAMRC) is a para-statal medical research organisation in South Africa. The current president is professor Glenda Gray. The South African Medical Research Council was established in 1969 to act as an independent statutory body to co-ordinate health and medical research activities throughout South Africa. Research conducted by the SAMRC is in the fields of tuberculosis, HIV/AIDS, cardiovascular diseases, non-communicable diseases, gender and health, alcohol abuse, and drug abuse. It is a member of the Innovative Vector Control Consortium The Innovative Vector Control Consortium (IVCC) is a not-for-profit, product development partnership (PDP) designed to facilitate the development and delivery of new and improved vector control tools to prevent malaria and other neglected tropica .... References Medical research institutes in South Africa {{SouthAfrica-org-stub ...
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Howard Hughes Medical Institute
The Howard Hughes Medical Institute (HHMI) is an American non-profit medical research organization based in Chevy Chase, Maryland. It was founded in 1953 by Howard Hughes, an American business magnate, investor, record-setting pilot, engineer, film director, and philanthropist, known during his lifetime as one of the most financially successful individuals in the world. It is one of the largest private funding organizations for biological and medical research in the United States. HHMI spends about $1 million per HHMI Investigator per year, which amounts to annual investment in biomedical research of about $825 million. The institute has an endowment of $22.6 billion, making it the second-wealthiest philanthropic organization in the United States and the second-best endowed medical research foundation in the world. HHMI is the former owner of the Hughes Aircraft Company – an American aerospace firm which was divested to various firms over time. History The institute was fo ...
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Subtypes Of HIV
The subtypes of HIV include two major types, HIV type 1 (HIV-1) and HIV type 2 (HIV-2). HIV-1 is related to viruses found in chimpanzees and gorillas living in western Africa, while HIV-2 viruses are related to viruses found in the sooty mangabey, a vulnerable West African primate. HIV-1 viruses can be further divided into groups M, N, O and P. The HIV-1 group M viruses predominate and are responsible for the AIDS pandemic. Group M can be further subdivided into subtypes based on genetic sequence data. Some of the subtypes are known to be more virulent or are resistant to different medications. Likewise, HIV-2 viruses are thought to be less virulent and transmissible than HIV-1 M group viruses, although HIV-2 is also known to cause AIDS. One of the obstacles to treatment of the human immunodeficiency virus (HIV) is its high genetic variability. Major types HIV-1 HIV-1 is the most common and pathogenic strain of the virus. Over 2 million such infections occur annually. Scientists ...
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Global HIV Vaccine Enterprise
The Global HIV Vaccine Enterprise (the Enterprise) is an alliance of organizations formed to accelerate the search for an HIV vaccine. Initially proposed in Science magazine in 2003 and developed by scientists, health experts and policy makers, the concept of the Enterprise received support from the G8 the following year. The primary aim of the organization is to provide leadership in efforts to reverse the AIDS epidemic. The organization, based in New York City, was founded by representatives from The Gates Foundation, NIH, WHO-UNAIDS, European Commission, Wellcome Trust, International AIDS Vaccine Initiative, French National Agency for Research on AIDS and Viral Hepatitis. History In June 2003, a group of 24 individuals in the field of HIV vaccines published a Policy Forum article in the journal Science proposing the creation of the Global HIV Vaccine Enterprise. The article asserted that current attempts to develop such a vaccine were insufficient and that a renewed HIV ...
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