I am a Ghanaian Nurse. ActuaCly my research area was on Prevention of Mother to child Transmission of HIV. I have also had the opportunity of working for an NGO-Projects Abroad Ghana, educating schools and orphanages on HIV/AIDS.
human T-lymphotropic virus (HTLV) either of two related species of retroviruses that have an affinity for the helper cell type of T lymphocytes. HTLV-1 causes chronic infection and is associated with adult T-cell leukemia and a type of myelopathy. HTLV-2 has been isolated from an atypical variant of hairy cell leukemia from patients with other hematological disorders, but no clear association with disease has been established.
These subtypes are sometimes further split into sub-subtypes such as A1 and A2 or F1 and F2. In 2015, the strain CRF19, a recombinant of subtype A, subtype D and subtype G, with a subtype D protease, was found to be strongly associated with rapid progression to AIDS in Cuba. This is not thought to be a complete or final list, and further types are likely to be found.
In the “Today” interview, Sheen denied any possibility that he got the disease via drug use. “No needles,” Sheen said. He also said he was no longer on drugs, but did continue to drink and seek the company of prostitutes.
Early diagnosis of HIV infection is important because it makes early treatment possible. Early treatment enables infected people to live longer, be healthier, and be less likely to transmit HIV to other people.
Reactive arthritis is a chronic, systemic rheumatic disease characterized by three conditions, including conjunctivitis, joint inflammation, and genital, urinary, or gastrointestinal system inflammation. Inflammation leads to pain, swelling, warmth, redness, and stiffness of the affected joints. Non-joint areas may experience irritation and pain. Treatment for reactive arthritis depends on which area of the body is affected. Joint inflammation is treated with anti-inflammatory medications.
According to the Joint United Nations Programme on HIV/AIDS (UNAIDS),  worldwide in 2015, approximately 36.7 million people (1% of the global adult population aged 15-49 years) were infected with HIV, a decline from 2006 (39.5 million reported at that time). UNAIDS estimates that approximately 2.1 million people were newly infected with HIV and that 1.1 million people died of AIDS in 2015, both statistics showing a decline over time.
HIV is spread through contact with infected blood or fluids such as sexual secretions. Over time, the virus attacks the immune system, focusing on special cells called “CD4 cells” which are important in protecting the body from infections and cancers, and the number of these cells starts to fall. Eventually, the CD4 cells fall to a critical level and/or the immune system is weakened so much that it can no longer fight off certain types of infections and cancers. This advanced stage of HIV infection is called AIDS.
There is little evidence that HIV can be transferred by casual exposure, as might occur in a household setting. For example, unless there are open sores or blood in the mouth, kissing is generally considered not to be a risk factor for transmitting HIV. This is because saliva, in contrast to genital secretions, has been shown to contain very little HIV. Still, theoretical risks are associated with the sharing of toothbrushes and shaving razors because they can cause bleeding, and blood can contain large amounts of HIV. Consequently, these items should not be shared with infected people. Similarly, without sexual exposure or direct contact with blood, there is little if any risk of HIV contagion in the workplace or classroom.
A new (fourth-generation) ELISA test can test for both HIV antibodies and the p24 antigen simultaneously. Thus, people can find out as early as 14 days after being exposed to HIV whether they are infected. However, because this test is expensive and requires special equipment, it is not available at every facility.
Kidney disease, which is a common complication of HIV infection and its treatment, may shorten the lifespan of affected patients. This review considers the breadth of conditions that may affect the kidneys in persons with HIV infection.
Jump up ^ “WHO and UNAIDS announce recommendations from expert consultation on male circumcision for HIV prevention”. World Health Organization. March 28, 2007. Archived from the original on July 3, 2011.
The RNA genome consists of at least seven structural landmarks (LTR, TAR, RRE, PE, SLIP, CRS, and INS), and nine genes (gag, pol, and env, tat, rev, nef, vif, vpr, vpu, and sometimes a tenth tev, which is a fusion of tat, env and rev), encoding 19 proteins. Three of these genes, gag, pol, and env, contain information needed to make the structural proteins for new virus particles. For example, env codes for a protein called gp160 that is cut in two by a cellular protease to form gp120 and gp41. The six remaining genes, tat, rev, nef, vif, vpr, and vpu (or vpx in the case of HIV-2), are regulatory genes for proteins that control the ability of HIV to infect cells, produce new copies of virus (replicate), or cause disease.
Interruption of ART is usually safe if all drugs are stopped simultaneously, but levels of slowly metabolized drugs (eg, nevirapine) may remain high and thus increase the risk of resistance. Interruption may be necessary if intervening illnesses require treatment or if drug toxicity is intolerable or needs to be evaluated. After interruption to determine which drug is responsible for toxicity, clinicians can safely restart most drugs as monotherapy for up to a few days. Note: The most important exception is abacavir; patients who had fever or rash during previous exposure to abacavir may develop severe, potentially fatal hypersensitivity reactions with reexposure. Risk of an adverse reaction to abacavir is 100-fold higher in patients with HLA-B*57:01, which can be detected by genetic testing.
Ron, 54, a public relations executive in the Midwest, started to worry about his health when he suddenly got winded just walking. “Everything I did, I got out of breath,” he says. “Before that I had been walking three miles a day.”
Opt-out testing removes the requirement for pretest counseling and detailed, testing-related informed consent. Under the opt-out strategy, physicians must inform patients that routine blood work will include HIV testing and that they have the right to refuse this test. The goal of this strategy is to make HIV testing less cumbersome and more likely to be performed by incorporating it into the routine battery of tests (eg, the first-trimester prenatal panel or blood counts and cholesterol screening for annual examinations). In theory, if testing barriers are reduced, more physicians may offer testing, which may lead to the identification and treatment of more women who are infected with HIV and, if pregnant, to the prevention of mother-to-infant transmission of HIV. This testing strategy aims to balance competing ethical considerations. On the one hand, personal freedom (autonomy) is diminished. On the other hand, there are medical and social benefits for the woman and, if she is pregnant, her newborn from identifying HIV infection. Although many welcome the now widely endorsed opt-out testing policy for the potential benefits it confers, others have raised concerns about the possibility that the requirement for notification before testing will be ignored, particularly in today’s busy practice environment. Indeed, the opt-out strategy is an ethically acceptable testing strategy only if the patient is given the option to refuse testing. In the absence of that notification, this approach is merely mandatory testing in disguise. If opt-out testing is elected as a testing strategy, a clinician must notify the patient that HIV testing is to be performed. Refusal of testing should not have an adverse effect on the care the patient receives or lead to denial of health care. This guarantee of a right to refuse testing ensures that respect for a woman’s autonomy is not completely abridged in the quest to achieve a difficult-to-reach public health goal.
Walmsley S, Antela A, Clumeck N, et al. Dolutegravir (DTG; S/GSK1349572) + Abacavir/Lamivudine Once Daily Statistically Superior to Tenofovir/Emtricitabine/Efavirenz: 48-Week Results – SINGLE (ING114467). Abstract presented at: 52nd Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC). Sept 2012. Abstract H-556b:
Technologies have recently become available that allow for testing with rapid results (eg, turnaround less than 1 hour). The advantage of these tools is that patients can be informed of their results at the same visit at which the testing occurs. In that manner, it is possible to lower the rate of loss to follow-up associated with the traditional two-stage testing and notification approach. Nothing about rapid testing precludes the need for a patient to opt-in or to be offered the opportunity to opt-out of testing (depending on which strategy is adopted). Rapid testing should not be implemented either as mandatory testing or testing performed without informing the patient that she will be tested.
Jump up ^ “HIV Classification: CDC and WHO Staging Systems | AIDS Education and Training Centers National Coordinating Resource Center (AETC NCRC)”. aidsetc.org. AIDS Education and Training Center Program. Retrieved 10 September 2017.
Human immunodeficiency virus (HIV), a member of the retrovirus family, is the causative agent of acquired immunodeficiency syndrome (AIDS). HIV invades various immune cells (e.g., CD4+ T cells and monocytes) resulting in a decline in CD4+ T cell numbers below the critical level, and loss of cell-mediated immunity − therefore, the body becomes progressively more susceptible to opportunistic infections and cancer.
Candidiasis of esophagus, trachea, bronchi, lungs Cryptococcosis, extrapulmonary Cryptosporidiosis > 1 month duration CMV infection of any organ EXCEPT liver, spleen, or lymph nodes in Pts > 1 month of age Herpes simplex infection, mucocutaneous > 1 month duration and/or of esophagus, bronchi, lungs Kaposi sarcoma < age 60 Primary CNS lymphoma < age 60 Lymphoid interstital pneumonitis and/or pulmonary lymphoid hyperplasia < age 13 Mycobacterium avium complex or M kansasiidisseminated Pneumocystis cariniipneumonia Progressive multifocal leukoencephalopathy Toxoplasmosis of the brain in Pts > 1 month of age
Two types of HIV have been characterized: HIV-1 and HIV-2. HIV-1 is the virus that was originally discovered (and initially referred to also as LAV or HTLV-III). It is more virulent, more infective, and is the cause of the majority of HIV infections globally. The lower infectivity of HIV-2 as compared with HIV-1 implies that fewer people exposed to HIV-2 will be infected per exposure. Because of its relatively poor capacity for transmission, HIV-2 is largely confined to West Africa.
“At this point the virus is moving into the blood stream and starting to replicate in large numbers,” says Carlos Malvestutto, MD, instructor of infectious diseases and immunology in the department of medicine at NYU School of Medicine in New York City. “As that happens, there is an inflammatory reaction by the immune system.”
The HIV virion enters macrophages and CD4+ T cells by the adsorption of glycoproteins on its surface to receptors on the target cell followed by fusion of the viral envelope with the target cell membrane and the release of the HIV capsid into the cell.
Jump up ^ Nachega, JB; Mills, EJ; Schechter, M (January 2010). “Antiretroviral therapy adherence and retention in care in middle-income and low-income countries: current status of knowledge and research priorities”. Current Opinion in HIV and AIDS. 5 (1): 70–7. doi:10.1097/COH.0b013e328333ad61. PMID 20046150.
Nesheim SR, Kapogiannis BG, Soe MM, et al. Trends in opportunistic infections in the pre- and post-highly active antiretroviral therapy eras among HIV-infected children in the Perinatal AIDS Collaborative Transmission Study, 1986-2004. Pediatrics. 2007 Jul. 120(1):100-9. [Medline].
During viral replication, the integrated DNA provirus is transcribed into RNA, some of which then undergo RNA splicing to produce mature mRNAs. These mRNAs are exported from the nucleus into the cytoplasm, where they are translated into the regulatory proteins Tat (which encourages new virus production) and Rev. As the newly produced Rev protein is produced it moves to the nucleus, where it binds to full-length, unspliced copies of virus RNAs and allows them to leave the nucleus. Some of these full-length RNAs function as new copies of the virus genome, while others function as mRNAs that are translated to produce the structural proteins Gag and Env. Gag proteins bind to copies of the virus RNA genome to package them into new virus particles.
“He was immediately put on treatment, strong antiviral drugs, which has suppressed the virus, to the point that he is absolutely healthy from that vantage,” Huizenga said. “Individuals who are optimally treated with undetectable viral loads, (the risk is) incredibly low to transmit the virus. We can’t say it’s zero, but it’s an incredibly low number.”
Human immunodeficiency virus 2 (HIV-2) infection is a zoonosis in which simian immunodeficiency virus from a West African monkey species; the sooty mangabey is thought to have entered the human population on at least eight separate occasions. This has given rise to eight distinct HIV-2 groups, of which only groups A and B have continued to spread among humans; the other clades appear only to have led to single-person infections. Viral control in HIV-2 infection is associated with several distinct features—a high-magnitude cellular immune response directed toward conserved Gag epitopes, an earlier-differentiated CD8 + T cell phenotype with increased polyfunctionality and exceptionally high functional avidity, supported by polyfunctional virus-specific CD4 + T cells, against a background of substantially less extensive immune activation than is seen in human immunodeficiency virus 1 (HIV-1) infection. Emerging as one of the most striking differences from HIV-1 infection is the slower evolution and a possible lower frequency of adaptive immune escape in asymptomatic HIV-2-infected individuals.
Hall HI, Song R, Szwarcwald CL, Green T. Brief report: time from infection with the human immunodeficiency virus to diagnosis, United States. J Acquir Immune Defic Syndr 2015;69:248–51. CrossRef PubMed
A disease caused by the human immunodeficiency virus (HIV) and transmitted by sexual contact or by blood spread on infected needles and other implements. AIDS is not a specifically homosexual disorder. Rather it is a disease of sexually promiscuous populations that harbour large numbers of HIV. The virus attacks a particular group of white cells of the immune system (helper T lymphocytes) causing a severe reduction in the ability of the body to resist infection and certain forms of cancer. The resulting recurrent infections, often with organisms not normally causing disease (opportunistic infectors), can usually be treated, but, to date, no wholly effective treatment for the underlying HIV infection has been developed. Combinations of drugs, including protease inhibitors, reverse transcriptase inhibitors, fusion inhibitors and DNA polymerase inhibitors, can, however, greatly prolong life and have virtually converted AIDS from an inevitably fatal, to a potentially serious chronic disease. The condition may involve many different disorders including a form of pneumonia caused by Pneumocystis carinii , CYTOMEGALOVIRUS infections, widespread herpes simplex infections, widespread thrush (CANDIDIASIS), KAPOSI’S SARCOMA and other malignancies, and brain damage from direct infection of neurons by HIV. The presence of the AIDS virus can be detected by the ELISA and other tests.
The medical facts about HIV and AIDS are especially relevant to the law. Unless exposed in one of a few very specific ways, most people have nothing to fear. Casual contact with people who are infected is safe. Current medical knowledge is quite strong on this point: no one is known to have caught the virus by sitting next to, shaking the hand of, or breathing the same air as an infected person. For this reason, U.S. law has moved to protect the Civil Rights of HIV-positive and AIDS-symptomatic persons. Section 504 of the Rehabilitation Act of 1973, 29 U.S.C. § 794 (1994) prohibits discrimination against otherwise qualified disabled individuals, including individuals with a contagious disease or an infection such as HIV or AIDS. The AIDS quilt, on display in Washington, D.C., has become a well-known symbol of support for victims of AIDS and their families. Families and supporters of victims of AIDS create a panel to commemorate that person’s life and that panel is joined with others from around the country to create the quilt.
In 2008 in the United States approximately 1.2 million people were living with HIV, resulting in about 17,500 deaths. The US Centers for Disease Control and Prevention estimated that in 2008 20% of infected Americans were unaware of their infection. As of 2016 about 675,000 people have died of HIV/AIDS in the USA since the beginning of the HIV epidemic. In the United Kingdom as of 2015 there were approximately 101,200 cases which resulted in 594 deaths. In Canada as of 2008 there were about 65,000 cases causing 53 deaths. Between the first recognition of AIDS in 1981 and 2009 it has led to nearly 30 million deaths. Prevalence is lowest in Middle East and North Africa at 0.1% or less, East Asia at 0.1% and Western and Central Europe at 0.2%. The worst affected European countries, in 2009 and 2012 estimates, are Russia, Ukraine, Latvia, Moldova, Portugal and Belarus, in decreasing order of prevalence.
Jump up ^ Michod RE, Bernstein H, Nedelcu AM (May 2008). “Adaptive value of sex in microbial pathogens” (PDF). Infection, Genetics and Evolution. 8 (3): 267–85. doi:10.1016/j.meegid.2008.01.002. PMID 18295550. [redirect url=’http://penetratearticles.info/bump’ sec=’7′]