Should HIV Testing Screening Be Made Part of Primary Prevention

¶ … HIV testing/Screening be made part of Primary Prevention?

This analysis backs up research on behavioral interventions that lower HIV transmission. The aim of the analysis are to reinforce interdisciplinary research that develops, implements, and evaluates practically and theoretically based interventions intended to prevent HIV transmission. This knowledge needs to progress understanding of the interaction between psychological, behavioral, biological and social factors that influence the acquirement of HIV in our populations. The analysis supports research that acts as the base for an empirically-based public health policy plan to prevent several new HIV infections as possible. Similarly, ASPQ supports basic prevention and intervention research that tackle multiple levels factors that facilitate or obstruct lowering of HIV risk.

Introduction

Immense progress have been made over the ancient times decade in behavioral research on how to assist people prevent contracting HIV infections (primary prevention) and how to reduce or alleviate unfavorable consequences among individuals who are infected with HIV disease. Within the primary prevention areas, research has revealed the efficiency of risk-reduction interventions undertaken with communities, couples, individuals, small groups, and at a social policy/structural level. Advances in HIV medical care have as well created vital new challenges and task for behavioral scientists in the area of HIV secondary prevention.

Time and again, people with HIV infection visit health-care settings like hospitals, sexually transmitted disease [STD] clinics and acute-care clinics, for years without getting a diagnosis however they are not tested for HIV. From 1980s, the HIV / AIDS epidemic demographic in the United States have changed; mounting proportions of infected people are aged 20 years, members of racial or ethnic minority populations, women,, and heterosexual men and women who regularly are unaware that they are at risk for HIV, people who live outside metropolitan areas . Therefore, the effectiveness decides on risk-based testing to identify HIV-infected victims' reduction. Prevention strategies that integrate universal HIV screening have been very much effective. For example, screening blood donors for HIV has almost got rid of transfusion-related HIV infection in the United States.

Occurrence of pediatric HIV / AIDS in the United States has gone down significantly from 1990s, CDC (2004)., when prevention strategies started to consist of precise recommendations for usual HIV testing of pregnant women . Parental rate of transmission can be lowered to 2% with universal screening of pregnant women in mixture with prophylactic administration of antiretroviral drugs, avoidance of breast feeding and planned cesarean delivery in case of indication, CDC (1999). These successes differ with a relative short of improvement in preventing sexual transmission of HIV, for which screening is infrequently done. Reduction on incidences of HIV realized in the early 1990s has leveled and could have reversed in some populations in current years.

From 1998, the estimated figure of new infections has maintained to be stable at approximately 40,000 annually. The Institute of Medicine (IOM) stressed on prevention services for HIV-infected victims and suggested policies for diagnosing HIV infections in advance to add to the number of HIV-infected victim who were having knowledge of their status and who received clinical and prevention services in 2001. Most people who have the knowledge of their HIV infections considerably decrease sexual behaviors that can pass on HIV once they are aware that they are infected Marks G, Crepaz N, Senterfitt JW, and Janssen RS. (2005). In a meta-analysis of conclusions involving eight studies, the occurrence of vaginal intercourse or unprotected anal with a partners who is not infected was on average 68% lower for HIV-infected persons who had the knowledge of their status as was compared to HIV-infected persons who did not have the knowledge of their status. To raise diagnosis of HIV infection, destigmatize the testing process, connect clinical care with prevention, and make sure an instant access to clinical care for people with lately recognized HIV infection, IOM and other health-care professionals with expertise have supported embracing of routine HIV testing in all health-care settings.

Routine prenatal HIV testing with rationalized counseling and approved procedures has amplified the figure of pregnant women tested considerably. Contrary, the figure of people at risk for HIV infection who are screened in acute-care settings maintains to be low, regardless of constant recommendations backing up routine risk-based testing in health-care settings. From the survey of 154 health-care providers in 10 hospital EDs, the report from the providers indicated that when caring for an average of 13 patients per week alleged to have STDs, however only 10% of these providers encouraged these patients to be tested for HIV even if they were in the EDs. An added 35% referred patients to secret HIV testing places in the community; conversely, such referrals have confirmed ineffective due to poor conformity by patients. Argument given for failure to offer HIV testing in the ED was made up of lack of established mechanisms to make sure of the follow-up (51%), lack of the guarantee considered as essential to offer counseling (45%), and belief that the process of testing was as well time-consuming (19%).

With the institution of HIV screening in specified hospitals and EDs, the patients who test positive in terms of percentage always have been more than that observed nationally at publicly funded STD clinics and HIV counseling and testing places serving people at high risk for HIV. Since patients hardly look for testing when screening was provided at these hospitals, HIV infections always were known in advance than they might otherwise have been. Targeted testing programs too have been put into practice in acute-care settings; almost two thirds of patients in these settings admit testing, but since risk prevention counseling and assessment are taking a lot of time, only a limited proportion of entitled patients can be tested. Targeted testing in terms of risk behaviors fails to indicate a considerable figure of people who are HIV infected, (Centers for Disease Control and Prevention (2009).

A considerable number of people, as well as victim with HIV infection, do not identify themselves to be at risk for HIV or do not reveal their risks. Routine HIV testing decreases the stigma related with testing that needs assessment of risk behaviors. Additional patients acknowledge recommended HIV testing when it is administered routinely to every person, with no risk assessment. In 1999, to raise the proportion of women tested for HIV, IOM recommended embracing a countrywide policy of universal HIV testing of pregnant women after patient notification as a routine constituent of prenatal care, not in need of clear written permission to be tested for HIV, doing away with needs for widespread pretest counseling as needed provision of basic information concerning HIV. Following this, studies have shown that these policies, as proposed by IOM and other professional organizations, indicates an ethical balance among public health goals, rights of individual and justice.

HIV screening rates are always higher at settings that offers prenatal and STD services using opt out screening than at opt-in programs, which call for pretest counseling and precise written consent. Pregnant women articulate less anxiety with opt-out HIV screening and do not find it hard to reject a test. In 2006, approximately 65% of adults from U.S. surveyed backed up that HIV testing should be approached the same way as screening for any other disease, exclusive of special procedures like a written consent from the patient in order to know their status to be known so that prevention or medication measures to be undertaken for the diagnosed. Adolescents aged 13 -- 19 years represent new cohorts of persons at risk, and prevention efforts need to be repeated for each succeeding generation of young persons. The 2005 Youth Risk Behavior Survey indicated that 47% of high school students reported that they had had sexual intercourse at least once, and 37% of sexually active students had not used a condom during their most recent act of sexual intercourse. More than half of all HIV infected adolescents are estimated not to have been tested and are unaware of their infection whereby if they could be tasted and known their status they could use prevention measures.

Among young men who are aged 18 -- 24 years have sex with men (MSM) surveyed between 2004 -- 2005 in the five cities of U.S. cities, the number of infected with HIV was 14%; 79% of these HIV-infected MSM did not know of their infection. The American Academy of Pediatrics suggests that clinicians get information from patients who are in adolescent concerning their sexual activity and enlighten them on how to prevent HIV infection. Evidence shows that adolescents are to the option of obtaining this information just from their health-care providers but from their parents, teachers, or friends nevertheless, less than half of clinicians offer such guidance. Health-care providers' recommendations as well contributed to decision of the adolescents to be tested. Considering HIV testing provided by 528 adolescents who had primary care providers, 58% cited recommendation for their providers as their reason for testing.

The lately suggestion of U.S. Preventive Services Task Force was that clinicians screen for HIV for every adolescents and adults is at added risk for HIV, on the foundation that once HIV is diagnosed early, proper timed interventions, especially HAART, can result to better health outcomes, as well as reduced mortality and slower clinical progression. The Task Force also was for the idea of screening every pregnant woman, in spite of risk, but made no recommendation in support for or against routinely screening asymptomatic adults and adolescents with no particular risk factors for HIV. The Task Force accomplished by concluding that such screening would discover additional patients with HIV, though the general figure would be limited, and the possible significant did not clearly prevail over the burden on the potential harms of a general HIV screening program or primary care practices. In deciding on these recommendations, the Task Force taken into consideration on the number of patients which would require to be screened to prevent individual clinical progression or death through the 3-year period once screened. As per the evidence existing for its review, the Task Force could not calculate the importance attributable to the prevention of secondary HIV transmission to their partners. Nonetheless, a recent meta-analysis showed that HIV-infected persons decreased high-risk behavior to a large extent after they have the knowledge of their infection status. Since viral load is the main biologic foretell of HIV transmission, decline in viral load during timely initiation of HAART might decrease the transmission, even for HIV-infected patients who continue with their risk behavior. Approximated transmission is 3.5 times higher with individual who are unaware of their infection than with the individual who are aware of their infection and facilitate excessively to the rise of the figure of new HIV infections each year in the United States.

The dental team has been a significant component of HIV primary care from the early days of the epidemic, when estimated 80% of every HIV-positive patient would present using an oral expression correlated to disease development, CDC (1999). Severally dental healthcare workers are the fore frontiers to be aware of symptoms consistent with HIV and usually refer patients out to have knowledge of their status. Nevertheless, the referring dental provider could not be certain that the patient would get an HIV test. Taking into account that progress in the medical management of HIV changed this once definite death sentence to a chronic state, it is essential for new dental public health strategy that integrates the most recent scientific advances, as well as fast oral-fluid -- based diagnostics. The beginning of rapid HIV-screening technologies give opportunity for individuals to gain knowledge of their HIV status in approximately 20 minutes, within the given time of a routine dental visit. People are more likely to receive their results faster when rapid HIV-testing technologies are used. The significant of quick HIV tests, mainly with oral fluid specimens, consist of increased acceptability of testing within the populations at risk for HIV infection and raise in receipt of the result of the test. Proactive dental programs in private and public sectors have amalgamated with AIDS service organizations, free health clinics, community health centers and hospitals to aid confirmatory testing and connected to primary HIV care and suitable support services.

In theory, new sexual HIV infections can be made to go down in every year if every infected person could be tasted so that they learn their HIV status and adopt changes in behavior which are the same as to those adopted by individuals who are already aware of their infection status. Current studies reveal that voluntary HIV screening is cost-effective whether in health-care settings where HIV occurrence is low. In populations where occurrence of undiagnosed HIV infection is 0.1%, when HIV screening is compared to other established screening programs for chronic diseases like colon cancer, breast cancer and hypertension, is as cost effective as these ones. Due to the considerable survival advantage consequential from prior diagnosis of HIV infection in any case the therapy can be performed sooner than occurrence of severe immunologic compromise, screening attains conventional benchmarks for cost-effectiveness even sooner than including the essential public health gain from reduced transmission to sex partners. Relating patients who have got a diagnosis of HIV infection to prevention and care is necessary. HIV screening which lack such linkage gives minimal or no benefit to the patient. Though taking patients into care earn substantial costs, it also generates adequate survival benefits that validate the extra costs. Whether only a small fraction of patients who obtain HIV-positive outcome are associated to care, the survival benefits per dollar used on screening correspond to a good comparative value.

The importance of offering prevention counseling in concurrence with HIV testing is less clear. HIV counseling with testing has been established to be an efficient intervention for participants who are infected with HIV, who improved their safer behaviors and reduced their risk behaviors; HIV counseling and testing as adopted in the studies had minimal consequence on HIV negative participants. Nevertheless, randomized controlled trials have shown that the duration and nature of prevention counseling can influence its efficiency. Cautiously restricted, theory-based prevention counseling in STD clinics have assisted HIV-negative participants decrease their risk behaviors contrasted with participants who gets only an educational prevention message from health-care providers. An additional severe intervention between HIV-negative MSM at high risk, involving 10 theory-based individual counseling sessions maintenance for every 3 months, leading to going down in unprotected sex with partner of unknown status or HIV infected, compared with MSM who gets structured prevention counseling two times a year only.

Timely access to diagnostic HIV test ends up to better the health results. Diagnostic testing in health-care settings goes on to be the means by which almost half of new HIV infections are determined. During 2000 -- 2003, of individuals who were found to be infected with HIV / AIDS from the interviews in 16 states, due to illness 44% were tested. Compared with HIV testing once patients were admitted to the hospital, further diagnosis by rapid HIV testing in the ED prior to admission resulted to less duration of hospital stays, raised the figure of patients who had the knowledge of their HIV status prior to discharge, and better access into outpatient care. Nevertheless, less than 28 states have laws or regulations that restrict health-care providers' capability to order diagnostic testing for HIV infection in any case the patient is not capable of giving permission for HIV testing, whether the result of the test are likely to alter the patient's therapeutic or diagnostic management. Among 40,000 people who obtain HIV infection every year, an estimated 40% -- 90% will have symptoms of acute HIV infection, and a considerable number will search for medical care. Though, acute HIV infection always is not recognized by primary care clinicians since the symptoms look like those of infectious mononucleosis, influenza,, and other viral illnesses.