51 research outputs found
Recommended from our members
Seeking common ground : a history of labor and Blue Cross
In recent years, voluntary health insurance costs have become a major source of friction in labor-management negotiations. What was once a "fringe" has led to job actions, strikes, and intensive bargaining. We examine the history of labor's participation in New York Blue Cross from the 1930s to the recent past and show that labor's participation in the plan was crucial to Blue Cross's success in the plan's early decades. By the late 1950s, serious tensions developed over rate increases and the participation of labor in Blue Cross governance. Ultimately, the issue was one of the control over what was provided by the plans and who would pay for the costs of care. We posit that labor was never able to achieve an important role in the control of the third-party payer, and in the antilabor environment of the 1980s this proved detrimental to labor's interests
Recommended from our members
"A problem of slum dwellings and relatively ignorant parents": a history of victim blaming in the lead pigment industry
In February 2006, in what the Rhode Island Supreme Court and others around the country called a "monumental lawsuit," a jury of six men and women held lead pigment manufacturers liable for creating what some have called the largest and longest on-going public health disaster for children in United States history. The State of Rhode Island's Attorney General's Office had initiated the suit nearly six years before charging that the historical record showed the industry had knowingly sold and profited from a product that they knew poisoned children. The attorneys representing the State argued that lead paint on the walls, woodwork, and windowsills of nearly 80 percent of the State's housing constituted a public nuisance that would lead to further cases of childhood lead poisoning in the coming years. The defense argued that the industry was not to blame. Instead, they placed responsibility for the epidemic on landlords for not maintaining their properties and on parents, most of whom were African-American and Latino, for not supervising their children more scrupulously. This article looks at the long, sad history of blaming children, parents, and even public health officials for the on-going tragedy of lead poisoning
High Multiplicity Infection by HIV-1 in Men Who Have Sex with Men
Elucidating virus-host interactions responsible for HIV-1 transmission is important for advancing HIV-1 prevention strategies. To this end, single genome amplification (SGA) and sequencing of HIV-1 within the context of a model of random virus evolution has made possible for the first time an unambiguous identification of transmitted/founder viruses and a precise estimation of their numbers. Here, we applied this approach to HIV-1 env analyses in a cohort of acutely infected men who have sex with men (MSM) and found that a high proportion (10 of 28; 36%) had been productively infected by more than one virus. In subjects with multivariant transmission, the minimum number of transmitted viruses ranged from 2 to 10 with viral recombination leading to rapid and extensive genetic shuffling among virus lineages. A combined analysis of these results, together with recently published findings based on identical SGA methods in largely heterosexual (HSX) cohorts, revealed a significantly higher frequency of multivariant transmission in MSM than in HSX [19 of 50 subjects (38%) versus 34 of 175 subjects (19%); Fisher's exact p = 0.008]. To further evaluate the SGA strategy for identifying transmitted/founder viruses, we analyzed 239 overlapping 5′ and 3′ half genome or env-only sequences from plasma viral RNA (vRNA) and blood mononuclear cell DNA in an MSM subject who had a particularly well-documented virus exposure history 3–6 days before symptom onset and 14–17 days before peak plasma viremia (47,600,000 vRNA molecules/ml). All 239 sequences coalesced to a single transmitted/founder virus genome in a time frame consistent with the clinical history, and a molecular clone of this genome encoded replication competent virus in accord with model predictions. Higher multiplicity of HIV-1 infection in MSM compared with HSX is consistent with the demonstrably higher epidemiological risk of virus acquisition in MSM and could indicate a greater challenge for HIV-1 vaccines than previously recognized
Genetic identity, biological phenotype, and evolutionary pathways of transmitted/founder viruses in acute and early HIV-1 infection
Identification of full-length transmitted HIV-1 genomes could be instrumental in HIV-1 pathogenesis, microbicide, and vaccine research by enabling the direct analysis of those viruses actually responsible for productive clinical infection. We show in 12 acutely infected subjects (9 clade B and 3 clade C) that complete HIV-1 genomes of transmitted/founder viruses can be inferred by single genome amplification and sequencing of plasma virion RNA. This allowed for the molecular cloning and biological analysis of transmitted/founder viruses and a comprehensive genome-wide assessment of the genetic imprint left on the evolving virus quasispecies by a composite of host selection pressures. Transmitted viruses encoded intact canonical genes (gag-pol-vif-vpr-tat-rev-vpu-env-nef) and replicated efficiently in primary human CD4+ T lymphocytes but much less so in monocyte-derived macrophages. Transmitted viruses were CD4 and CCR5 tropic and demonstrated concealment of coreceptor binding surfaces of the envelope bridging sheet and variable loop 3. 2 mo after infection, transmitted/founder viruses in three subjects were nearly completely replaced by viruses differing at two to five highly selected genomic loci; by 12–20 mo, viruses exhibited concentrated mutations at 17–34 discrete locations. These findings reveal viral properties associated with mucosal HIV-1 transmission and a limited set of rapidly evolving adaptive mutations driven primarily, but not exclusively, by early cytotoxic T cell responses
The Evolution of Host Specialization in the Vertebrate Gut Symbiont Lactobacillus reuteri
Recent research has provided mechanistic insight into the important contributions of the gut microbiota to vertebrate biology, but questions remain about the evolutionary processes that have shaped this symbiosis. In the present study, we showed in experiments with gnotobiotic mice that the evolution of Lactobacillus reuteri with rodents resulted in the emergence of host specialization. To identify genomic events marking adaptations to the murine host, we compared the genome of the rodent isolate L. reuteri 100-23 with that of the human isolate L. reuteri F275, and we identified hundreds of genes that were specific to each strain. In order to differentiate true host-specific genome content from strain-level differences, comparative genome hybridizations were performed to query 57 L. reuteri strains originating from six different vertebrate hosts in combination with genome sequence comparisons of nine strains encompassing five phylogenetic lineages of the species. This approach revealed that rodent strains, although showing a high degree of genomic plasticity, possessed a specific genome inventory that was rare or absent in strains from other vertebrate hosts. The distinct genome content of L. reuteri lineages reflected the niche characteristics in the gastrointestinal tracts of their respective hosts, and inactivation of seven out of eight representative rodent-specific genes in L. reuteri 100-23 resulted in impaired ecological performance in the gut of mice. The comparative genomic analyses suggested fundamentally different trends of genome evolution in rodent and human L. reuteri populations, with the former possessing a large and adaptable pan-genome while the latter being subjected to a process of reductive evolution. In conclusion, this study provided experimental evidence and a molecular basis for the evolution of host specificity in a vertebrate gut symbiont, and it identified genomic events that have shaped this process
Genetic identity, biological phenotype, and evolutionary pathways of transmitted/founder viruses in acute and early HIV-1 infection
Identification of full-length transmitted HIV-1 genomes could be instrumental in HIV-1 pathogenesis, microbicide, and vaccine research by enabling the direct analysis of those viruses actually responsible for productive clinical infection. We show in 12 acutely infected subjects (9 clade B and 3 clade C) that complete HIV-1 genomes of transmitted/founder viruses can be inferred by single genome amplification and sequencing of plasma virion RNA. This allowed for the molecular cloning and biological analysis of transmitted/founder viruses and a comprehensive genome-wide assessment of the genetic imprint left on the evolving virus quasispecies by a composite of host selection pressures. Transmitted viruses encoded intact canonical genes (gag-pol-vif-vpr-tat-rev-vpu-env-nef) and replicated efficiently in primary human CD4+ T lymphocytes but much less so in monocyte-derived macrophages. Transmitted viruses were CD4 and CCR5 tropic and demonstrated concealment of coreceptor binding surfaces of the envelope bridging sheet and variable loop 3. 2 mo after infection, transmitted/founder viruses in three subjects were nearly completely replaced by viruses differing at two to five highly selected genomic loci; by 12–20 mo, viruses exhibited concentrated mutations at 17–34 discrete locations. These findings reveal viral properties associated with mucosal HIV-1 transmission and a limited set of rapidly evolving adaptive mutations driven primarily, but not exclusively, by early cytotoxic T cell responses
From Harm to Robustness: A Principled Approach to Vice Regulation
John Stuart Mill’s harm principle maintains that adult behavior cannot justifiably be subject to social coercion unless the behavior involves harm or a significant risk of harm to non-consenting others. The absence of harms to others, however, is one of the distinguishing features of many manifestations of “vices” such as the consumption of alcohol, nicotine, recreational drugs, prostitution, pornography, and gambling. It is with respect to vice policy, then, that the harm principle tends to be most constraining, and some current vice controls, such as prohibitions on drug possession and prostitution, violate Mill’s precept. In the vice arena, we seem to be willing to accept social interference with what Mill termed “self-regarding” behavior. But does that willingness then imply that any social intervention into private affairs is justifiable, that the government has just as much right to outlaw Protestantism, or shag carpets, or spicy foods, as it does to outlaw drugs? In this paper I argue that advances in neuroscience and behavioral economics offer strong evidence that vices and other potentially addictive goods or activities frequently involve less-than-rational choices, and hence are exempt from the full force of the harm principle. As an alternative guide to vice policy, and following some guidance from Mill, I propose the “robustness principle”: public policy towards addictive or vicious activities engaged in by adults should be robust with respect to departures from full rationality. That is, policies should work pretty well if everyone is completely rational, and policies should work pretty well even if many people are occasionally (or frequently) irrational in their vice-related choices. The harm and robustness principles cohere in many ways, but the robustness principle offers more scope for policies that try to direct people “for their own good,” without opening the door to tyrannical inroads upon self-regarding behavior
With the Best Intentions: Lead Research and the Challenge to Public Health
In 2001, Maryland’s court of appeals was asked to decide whether researchers at Johns Hopkins University had engaged in unethical research on children. During the 1990s, Johns Hopkins’s Kennedy Krieger Institute had studied 108 African American children, aged 6 months to 6 years, to find an inexpensive and “practical” means to ameliorate lead poisoning. We have outlined the arguments in the case and the conundrum faced by public health researchers as they confront new threats to our health from environmental and industrial insults. We examined the case in light of contemporary public health ideology, which prioritizes harm reduction over the historical goals of prevention. As new synthetic toxins—such as bisphenyl A, polychlorinated biphenyls, other chlorinated hydrocarbons, tobacco, vinyl, and asbestos—are discovered to be biologically disruptive and disease producing at low levels, lead provides a window into the troubling dilemmas public health will have to confront in the future
Deceit and denial: the deadly politics of industrial pollution
Deceit and Denial details the attempts by the chemical and lead industries to deceive Americans about the dangers that their deadly products present to workers, the public, and consumers. Gerald Markowitz and David Rosner pursued evidence steadily and relentlessly, interviewed the important players, investigated untapped sources, and uncovered a bruising story of cynical and cruel disregard for health and human rights. This resulting exposé is full of startling revelations, provocative arguments, and disturbing conclusions--all based on remarkable research and information gleaned from secret industry documents. This book reveals for the first time the public relations campaign that the lead industry undertook to convince Americans to use its deadly product to paint walls, toys, furniture, and other objects in America's homes, despite a wealth of information that children were at risk for serious brain damage and death from ingesting this poison. This book highlights the immediate dangers ordinary citizens face because of the relentless failure of industrial polluters to warn, inform, and protect their workers and neighbors. It offers a historical analysis of how corporate control over scientific research has undermined the process of proving the links between toxic chemicals and disease. The authors also describe the wisdom, courage, and determination of workers and community members who continue to voice their concerns in spite of vicious opposition. Readable, pathbreaking, and revelatory, Deceit and Denial provides crucial answers to questions of dangerous environmental degradation, escalating corporate greed, and governmental disregard for its citizens' safety and health
- …