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Since the beginning of the epidemic sex workers have experienced a heightened burden of HIV across settings, despite their higher levels of HIV protective behaviors (UNAIDS, 2009). Unfairly, sex workers have often been framed as 'vectors of disease' and 'core transmitters' rather than workers and human beings with rights in terms of HIV prevention and beyond. By gaining a deeper understanding of the epidemiologic and broader policy and social context within which sex work is set one begins to quickly gain a sense of the complex backdrop for increased risk to HIV among sex workers. This backdrop includes the critical role of stigma, discrimination and violence faced by sex workers, as well as, the importance of community empowerment and mobilization among sex workers to address these regressive forces. The eight country case studies work to highlight the experiences of diverse populations of and contexts for sex work across settings. Given the limited epidemiologic and intervention evaluation data available among male and transgender sex workers, however, our collaborative team (Johns Hopkins University, or JHU, World Bank, United Nations Population Fund (UNFPA), and Global Network of Sex Work Projects, or NSWP) determined that the systematic review, mathematical modeling and cost-effective analyses would focus on female sex workers. Throughout the process of this analysis as a whole, the participation of sex worker perspectives and sex worker organizations such as NSWP and their regional partners has been critical by providing documents and resources, input and consultation throughout the analytical process.

This publication addresses research questions related to an increase in the levels of access and utilization for four key interventions that have the potential to significantly reduce HIV infections among People Who Inject Drugs (PWID) and their sexual and injecting partners, and hence morbidity and mortality in low and middle-income countries (LMIC). These interventions are drawn from nine consensus interventions that comprise a 'comprehensive package' for PWID. The four interventions are: Needle and Syringe Programs (NSP), Medically Assisted Therapy (MAT), HIV Counseling and Testing (HCT), and Antiretroviral Therapy (ART). The book summarizes the results from several recent reviews of studies related to the effectiveness of the four key interventions in reducing risky behaviors in the context of transmitting or acquiring HIV infection. Overall, the four key interventions have strong effects on the risk of HIV infection among PWID via different pathways, and this determination is included in the documents proposing the comprehensive package of interventions. In order to attain the greatest effect from these interventions, structural issues must be addressed, especially the removal of punitive policies targeting PWID in many countries. The scientific evidence presented here, the public health rationale, and the human rights imperatives are all in accord: we can and must do better for PWID. The available tools are evidence-based, right affirming, and cost effective. What are required now are political will and a global consensus that this critical component of global HIV can no longer be ignored and under-resourced.

In March 2020, a national elimination strategy for coronavirus disease was introduced in New Zealand. Since then, hospitalizations for lower respiratory tract infection among infants <2 years of age and cases of respiratory syncytial or influenza virus infection have dramatically decreased. These findings indicate additional benefits of coronavirus disease control strategies.

Men who have sex with Men (MSM) are currently at marked risk for HIV infection in Low- and Middle-Income Countries (LMICs) in Asia, Africa, Latin America and the Caribbean, and in Eastern Europe and Central Asia. Estimates of HIV prevalence rates have been consistently higher among MSM than for the general population of reproductive-age men virtually wherever MSM have been well studied. Although scarce, HIV incidence data support findings of high acquisition and transmission risks among MSM in multiple contexts, cultural settings, and economic levels. Research among MSM in LMICs has been limited by the criminalization and social stigmatization of these behaviors, the safety considerations for study participants, the hidden nature of these populations, and a lack of targeted funding. Available evidence from these countries suggests that structural risks social, economic, political, or legal factors in addition to individual-level risk factors are likely to play important roles in shaping HIV risks and treatment and care options for these men. Services and resources for populations of MSM remain markedly low in many settings. They have limited coverage and access to HIV/AIDS prevention, treatment, and care services with some estimates suggesting that fewer than one in ten MSM worldwide have access to the most basic package of preventive interventions.

Despite a fair amount of progress on understanding human immunodeficiency virus (HIV) epidemiology globally, the Middle East and North Africa (MENA) region is the only region where knowledge of the epidemic continues to be very limited, and subject to much controversy. It has been more than 25 years since the discovery of HIV, but no scientific study has provided a comprehensive data-driven synthesis of HIV/AIDS (acquired immunodeficiency syndrome) infectious spread in this region. The current report provides the first comprehensive scientific assessment and data-driven epidemiological synthesis of HIV spread in MENA since the beginning of the epidemic. It is based on a literature review and analysis of thousands of widely unrecognized publications, reports, and data sources extracted from scientific literature or collected from sources at the local, national, and regional levels. The recommendations provided here focus on key strategies related to the scope of this report and its emphasis on understanding HIV epidemiology in MENA as a whole. The recommendations are based on identifying the status of the HIV epidemic in MENA, through this synthesis, as a low HIV prevalence setting with rising concentrated epidemics among priority populations. General directions for prevention interventions as warranted by the outcome of this synthesis are also discussed briefly, but are not delineated because they are beyond the scope of this report. This report was not intended to provide intervention recommendations for each MENA country.

Recurrent Clostridioides difficile infection (RCDI) causes an increased burden on the healthcare system. We calculated RCDI incidence and identified factors associated with RCDI cases in New Haven County, Connecticut, USA, during 2015-2020 by using data from population-based laboratory surveillance. A subset of C. difficile cases had complete chart reviews conducted for RCDI and potentially associated variables. RCDI was defined as a positive C. difficile specimen occurring 2-8 weeks after incident C. difficile infection. We compared cases with and without RCDI by using multiple regression. RCDI occurred in 12.0% of 4,301 chart-reviewed C. difficile cases, showing a U-shaped time trend with a sharp increase in 2020, mostly because of an increase in hospital-onset cases. Malignancy (odds ratio 1.51 [95% CI 1.11-2.07]) and antecedent nitrofurantoin use (odds ratio 2.37 [95% CI 1.23-4.58]) were medical risk factors for RCDI. The 2020 increase may reflect the impact of the COVID-19 pandemic.

Salmonella enterica serovar Abortusovis is a ovine-adapted pathogen that causes spontaneous abortion. Salmonella Abortusovis was reported in poultry in 2009 and has since been reported in human infections in New South Wales, Australia. Phylogenomic analysis revealed a clade of 51 closely related isolates from Australia originating in 2004. That clade was genetically distinct from ovine-associated isolates. The clade was widespread in New South Wales poultry production facilities but was only responsible for sporadic human infections. Some known virulence factors associated with human infections were only found in the poultry-associated clade, some of which were acquired through prophages and plasmids. Furthermore, the ovine-associated clade showed signs of genome decay, but the poultry-associated clade did not. Those genomic changes most likely led to differences in host range and disease type. Surveillance using the newly identified genetic markers will be vital for tracking Salmonella Abortusovis transmission in animals and to humans and preventing future outbreaks.

Background The Guangxi Zhuang Autonomous Region bears a relatively high burden of HIV/AIDS infection. The number of accumulatively reported HIV/AIDS cases in Guangxi is the third highest among 31 provinces or Autonomous Region from 2004 to 2007, changed to the second highest between 2011 and 2013, then returned to the third highest again after 2014. We aim to estimate the new infections and evaluate the real-time HIV epidemic in Guangxi, China, in order to reveal the rule of HIV transmission. Methods Firstly, the number of annually reported HIV and AIDS cases, as well as the number of cases linked with CD4 data are extracted from the HIV/AIDS information system in China. Secondly, two CD4-staged models are formulated by linking the with-host information on CD4 level to between-host transmission and surveillance data. Thirdly, new HIV infections, diagnosis rates and undiagnosed infections over time are estimated by using Bayesian method and Maximum Likelihood Estimation method. Results The data reveal that the newly reported cases have been decreasing since 2011, while lots of cases are identified at late CD4 stage. The data fitted results indicate that both models can describe the trend of the epidemic well. The estimation results show that the new and undiagnosed infections began to decrease from the period2006 - 2008. However, the diagnosis probabilities/rates keep at a very low level, and there are still a large number of infections undiagnosed, most of which have a large probability to be identified at late CD4 stage. Conclusions Our findings suggest that HIV/AIDS epidemic in Guangxi has been controlled to a certain extent, while the diagnosis rate still needs to be improved. More attentions should be paid to identify infections at their early CD4 stages. Meanwhile, comprehensive intervention measures should be continually strengthened in avoid of the rebound of new infections.

Invasive Haemophilus influenzae infection during pregnancy can cause preterm birth and fetal loss, but the mechanism is unclear. We investigated 54 cases of pregnancy-associated invasive H. influenzae disease in 52 unique pregnancies in the Auckland region of New Zealand during October 1, 2008‒September 30, 2018. Intraamniotic infection was identified in 36 (66.7%) of 54 cases. Outcome data were available for 48 pregnancies. Adverse pregnancy outcomes, defined as fetal loss, preterm birth, or the birth of an infant requiring intensive/special care unit admission, occurred in 45 (93.8%) of 48 (pregnancies. Fetal loss occurred in 17 (35.4%) of 48 pregnancies, before 24 weeks’ gestation in 13 cases, and at >24 weeks’ gestation in 4 cases. The overall incidence of pregnancy-associated invasive H. influenzae disease was 19.9 cases/100,000 births, which exceeded the reported incidence of pregnancy-associated listeriosis in New Zealand. We also observed higher rates in younger women and women of Māori ethnicity.

There is an emerging consensus in Papua New Guinea (PNG) - both at the governmental level and among civil society more generally - that human development outcomes are far less than provision of basic services in many parts of the country is failing. The book addresses the need to understand the underlying reason behind these sectors' poor performance and innovatively develop approaches for improving service delivery that fits with the country's economic, geographic, social, and cultural contexts. Strategic Directions for Human Development in Papua New Guinea presents the results of a joint venture among the World Bank, the Australian International Development Agency, the Asian Development Bank, and the Government of Papua New Guinea to conduct a situational assessment in the health, HIV/AIDS, and education sectors and suggest options to jointly move forward to improve human development outcomes. In addition, a series of cross - cutting issues common to all sectors is reviewed. Issus highlighted include the role of the public sector in delivering basic public services, the problems associated with the structure of decentralization and devolution arrangements, and the importance of having feasible financing, expenditure, and implementation plans that accurately reflect sectoral priorities.