A stochastic model of the HIV epidemic and the HIV infection distribution in a homosexual population

1993 ◽  
Vol 113 (1) ◽  
pp. 115-143 ◽  
Author(s):  
Wai-Yuan Tan ◽  
Robert H. Byers
1995 ◽  
Vol 126 (1) ◽  
pp. 81-123 ◽  
Author(s):  
Wai-Yuan Tan ◽  
Sho Rong Lee ◽  
Si Chin Tang

2015 ◽  
Vol 20 (6) ◽  
pp. 15-18
Author(s):  
V. V Naumenko ◽  
T. V Sologub ◽  
V. V Tsvetkov ◽  
L. M Tsybalova

The HIV epidemic has been going on for nearly thirty years, it is a heterogeneous, dynamic and highly resistant to countermeasures. The Leningrad Region and the city of St. Petersburg today are referred to the most affected regions of the Russian Federation, as nearly 1% of the population of this city has HIVpositive status. Despite the decline in the HIV infection incidence of the resident population of the Central District, the epidemiological situation for HIV infection remains to be tense, due to the increase in the cumulative number of HIV-infected and AIDS patients, the increase ofthe morbidity rate and mortality in co-infected patients with HIV/tuberculosis, activation of the output of the epidemic in vulnerable groups into the general population. At the same time, a cohort of HIV-infected patients with a high risk of late detection of tuberculosis continues to form


Author(s):  
EE Kuzovatova ◽  
NN Zaitseva

Introduction: Solution of the problem of prevention of the spread of HIV infection among adolescents and young adults is associated, inter alia, with systemic implementation of primary prevention strategies in educational establishments aimed at developing the necessary level of expertise in health risk management in students. The objective of our study was to determine the level of competence of adolescents in the field of HIV spread prevention Materials and methods: The technique of an online survey was used to establish the competence of high school students aged 15–17 living in the Nizhny Novgorod Region and to compare its level between boys and girls. Results: The level of competence was determined by four basic scales (emotional, cognitive, practical, and the scale of actions) and the additional scale of erudition. The level of general competence of the respondents was found to be high. Girls had significantly higher scores by all scales (p < 0.001) compared to boys. The erudition component was most prominent in both subgroups. The emotional component (empathy) was more important for girls. We noted differences in the significance of individual aspects of the assessed competence. Of the four priority strategies of HIV epidemic spread prevention, the respondents chose health care management and effective interaction of responsible structures as key factors in disease spread stop (р < 0.001). Conclusion: Promoting competence in HIV spread prevention among students for their effective social interaction in HIV related issues is an important outcome of preventive activities at schools. The content and forms of their implementation should facilitate students’ ability and readiness to self-protection, self-improvement, and mastering skills of predictive behaviour. Evaluating the level of competence and intensity of its components, setting priorities in choosing areas of applying efforts to reduce the risk of HIV epidemic growth can make prevention efforts more targeted.


2011 ◽  
Vol 62 (1) ◽  
pp. 57-64 ◽  
Author(s):  
Kornelija Miše ◽  
Maja Vučković ◽  
Anamarija Jurčev-Savičević ◽  
Ivan Gudelj ◽  
Irena Perić ◽  
...  

Undiagnosed AIDS in Patients with Progressive Dyspnoea: An Occupational Risk for Healthcare Workers in CroatiaPulmonary diseases are well documented and diverse in many patients with HIV in clinical stages 3 and 4. It is not unusual that these patients, most of whom do not know that they are already HIV-infected, are first examined and hospitalised by respiratory medicine specialists. While HIV-infection is relatively simple to diagnose if accompanied by advanced clinical manifestations and is regularly checked in patients with increased risk, this is not the case in low-risk patients, particularly in countries with low-level HIV epidemic and therefore low index of suspicion. Regular examination involves a series of tests, often including bronchoscopy with transbronchal lung biopsy in order to identify an interstitial lung disease and/or progressive dyspnoea. It is not uncommon that patients provide false or incomplete information about their lifestyle, which can mislead the clinician. At this point, HIV-infection is usually not suspected and healthcare workers may not strictly be following the safety principles which are otherwise applied when HIV-infection is known or suspect, although universal precautions are routine practice. At this point, the risk of exposure is the highest and HIV-transmission to healthcare workers is the most likely to occur. The cases presented here indicate that patients with progressive dyspnoea, which is typical of interstitial lung diseases, should undergo HIV-testing as a part of good clinical practice, even in a country with low-level HIV epidemic.


Author(s):  
Ren-Zong QIU

LANGUAGE NOTE | Document text in Chinese; abstract also in English.本文討論了艾滋病在中國大陸傳播引起的倫理和政策問題。作者首先指出在預防控制艾滋病問題上中國正處在十字路口。挨著作者分析了中國會不會成為艾滋病和艾滋病病毒感染的高發國,討論了制訂有效而合乎倫理的艾滋病防治政策的理論預設和價值以及評價政策的倫理學框架,討論了艾滋病治療和預防中的倫理和政策問題。The AIDS/HIV prevention and control in China is at crossroad. At present, there are insufficient grounds for us to say that China will definitely become a country with a high HIV infection rate in the future. However, we have much less sufficient grounds for saying that China will never reach that stage. On the contrary, we have much more reason to say that it is very probable for China to become a country with high HIV infection rate if we leave the current policy unchanged. The reasons are: economic reforms associated with large scale population movements in unprecedented way; proliferation of all sorts of high risk behavior, presence of other STDs which facilitate the spread of HIV; the risk of iatrogenic spread through untested blood transfusion; the "sex revolution" with changes in patterns of sex behaviour and increased casual sex, multiple sex partners among the younger generation; most Chinese still do not know how to protect themselves; and the ethical and legal atmosphere necessary for effectively preventing the HIV epidemic has not been formed.The conventional public health approach is not sufficient to prevent or control an HIV epidemic. When the cases of HIV infection were detected one by one in China, health professionals and programmers believed that they could take a conventional public health approach to cope with HIV epidemic. But they are wrong. HIV infection is an epidemic so special that the conventional public health measures such as testing, reporting, contact tracing, isolation are inadequate or ineffective to control the epidemic. HIV is often spread among those groups who are usually marginalized or stigmatized by society through behaviours both confidential or private.An effective policy of preventing HIV cannot be insensitive to ethical issues. However, many of health professionals and programmers bypassed ethical issues emerged in the prevention of the HIV epidemic. Even some health educators, sexologists and officials believe that "AIDS is the punishment by God" or "AIDS is the punishment for promiscuity". For them suffering AIDS is not morally irrelevant, and thus the ancient conception of disease was revived. But this conception of disease has already proved wrong and harmful to the treatment and prevention of any disease, especially to HIV. The consequence entailed by this conception is that the IIIV positive and AIDS patients were discriminated against and stigmatized. When their positive serological status was disclosed, they were faced with the risk of being expelled from school or fired from working unit, even rejected for admission into hospital, and their tights to confidentiality and privacy were often infringed upon. If all these ethical issues cannot be properly treated, how can those persons in danger or risk get access to information, services, education, counselling and techniques necessary to prevent HIV infection? One Chinese adage says that "You cannot have fish and bear palm both". In the prevention of HIV epidemic we have to have the protection of public health and the safeguarding of individual rights.For controlling HIV epidemic what we need is not a repressive law, but a supportive law to build a supportive environment in treatment and prevention of AIDS/HIV. So the policy and law involving AIDS/ HIV should be reformed.DOWNLOAD HISTORY | This article has been downloaded 19 times in Digital Commons before migrating into this platform.


1992 ◽  
Vol 16 (10) ◽  
pp. 638-639
Author(s):  
Neil Brener ◽  
Danitza Jadresic

It has been said that there is little likelihood of risk contact between people with learning disabilities in institutions and HIV infected people in the community and also that the shift of patients with learning disabilities from large institutions towards the community does not augur well for the prevention of HIV infection. There is little evidence for either of these views.


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