final review Flashcards
• Define emerging infectious disease and resurgent infectious disease. What did they think would bring a close to the “era” of infectious disease?
- Emerging – clinically distinct conditions whos incidence in humans has increased – can be new or old
- Resurgent- old diseases that show an increase in incidence
- Thought that era would end w antimicrobial drugs/antibiotics and widespread vaccination
- 20th century transition where infections diseased no longer appeared to be a major threat to health in wealthy countries
What did this view of infectious diseases as a thing of the past reveal a lack of concern for? By the 1980s, what shifted this view?
• Thought that era would end w antimicrobial drugs/antibiotics and widespread vaccination
o View point lacked a concern of the suffering and death due to infectious diseases for many of the worlds citizens
• 1980s increase in death by infectious disease in the united states
o What is driving the emergence or resurgence of infectious diseases? What is the primary driver? Briefly sum up the sociodemographic, environmental, and biological factors seen as important in the emergence and/or resurgence of infectious diseases.
o Primary driver is human social behavior, affecting both environmental conditions and biological evolution in pathogens
o Sociodemographic factors such as increase in pop density, urbanization, poverty, infrastructure decline
o Environmental factors such as deforestation, agriculture, natural disasters
o Biological factors such as bioweapons or change in pathogen genomes due to exposure to antimicrobial agents
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What does Paul Farmer mean with the ideas that infectious diseases are “hidden” among the poor?
many of the diseases
classified as emergent or resurgent have long been “hidden” among
the poor, and only when they capture media attention do they come
into the larger public consciousness
briefly sum up how the transition to agriculture created a series of social transformations that “profoundly shaped global infectious disease patterns”.
• Cultivation places greater demand on labor = strain on individual energy resources
• Settled agriculture lead to social stratification – ownership of critical resources as a means of amassing wealth – health differentials
• expansionist
activities into new areas and control over new populations also began
on a large scale in the post-agricultural period. Infection and war go
together, with injuries, poor diets, and crowded conditions all
providing new opportunities for pathogens.
o How did the rise of urban centres increase infectious disease spread? What influenced the low levels of immunological resistance among poor urban dwellers within this new urban ecology?
o The rise of urban centers, supported by agricultural surpluses from
the rural areas, provided new loci in which infectious diseases could
take hold and expand.
o crowded housing with scant means of waste
disposal became a new kind of breeding ground for more
“domesticated” pathogens, those that thrive indoors or in the water
supply, such as TB or cholera
o low levels of
immunological resistance among many poor urban dwellers worn
down by poor nutrition, stress, violence, pollutants, and other
pathogens.
o What influenced the creation of a common “disease pool” in the Old World? How did this disease pool expand into new areas of the globe? What is a virgin soil epidemic?
Civilized pattern of disease - long-distance trading routes and large urban centers
this disease
pool began expanding into new areas when Europeans began more
extensive global exploration and colonization.
virgin
soil epidemics, which occur when a new pathogen enters a new
population, are akin to epidemics of emerging infectious diseases;
they hit in successive waves and are associated with massive
mortality.
was smallpox the only infectious disease that decimated Indigenous populations? What is seen to have destroyed the populations and cultures of Indigenous peoples? What was the “net effect” of the waves of disease?
- no, it was one of many
- the successive wave of new diseases collectively destroyed
- net effect was the widespread cultural and demographic collapse
o How was smallpox eradicated? Briefly describe how the British and French colonialists viewed the demise of Indigenous populations.
o By a global vaccination effort by WHO
o They viewed as a positive/success
”, why were the Europeans not as successful in colonizing other parts of Asia or in Africa? What is sleeping sickness and why was it particularly problematic for European colonists? Briefly sum up the result of people hearing descriptions of “the white man’s grave”?
- Due to a shared disease pool with Asians and a disease barrier in some parts of Africa (diseases Europeans had not encountered before/ no immunity)
- Sleeping sickness – disease spread by flies that feed on cattle. Disease leads to coma and death, partucularily problematic for Europeans as they tried to establish cattle herds
- Ppl did not want to move there after hearing of white mans grave
o How were native populations viewed? What widespread colonial sentiment did these views support?
o Native pops viewed with suspicion, as possible vectors of disease that must be avoided
o Supported sentiment that they were biologically inferior + needed to be civilzed
o Who became the “the acceptable face of colonialism”? What was problematic about the care they provided?
o Missionaries, problematic bc the care they provided came at the cost of religious conversion and repudiation of traditional healing practices
o As discussed in the text, why and where did centers for “tropical medicine” emerge? What influenced the priorities of these centers? What was a key criticism of “tropical medicine” (i.e., what was seen as another way to address poor health)?
o Established in european capitals to study tropical diseases and medicine
o Priorities aligned with European colonists and scientists
o Key crit. = tool of colonial powers – cleaning up the mess they created by colonization
in broad terms, what the legacy of the colonial era? What was the phenomenon, that saw European health improve but colonized peoples’ health deteriorate, attributed to? What did McKeown, in contrast, propose? What most likely provided the resources to improve European nutrition?
- The legacy was twofold – global homogenization of infectious disease and divergence in the burden of infection shifting onto colonized peoples
- Phenomena attributed to rise of biomedicine and scientific advancements surrounding it
- Mckeown proposed that disease in Europe began to decline before biomedicine because of improvement in nutrition and public sanitation
- Resources from colonization- funds from the colonies
• As discussed in the section “Cholera”, what was one of the first diseases considered in relation to climate change? How does cholera spread? Where does cholera thrive?
• Cholera was. Spreads from fecal matter in water that others come into contact with. Thrives in large, dense pops making use of a single water source with insufficient hygienic measures to assure separation of waste water and drinking water
o Cholera is now considered a resurgent disease. Identify the three sources considered to underlie the continued spread of cholera.
o Three main sources fuel the continued spread
o Inadequate water sanitation (poverty, conflict)
o Global shipping traffic (port cities)
o Global warming (warmer saline waters; algal blooms)
. Other than its “refusal to disappear”, what are the current concerns about TB? How is TB spread?
- Also from rise of multidrug resistant and extremely multidrug resistant forms
- Tb is spread through fluid droplets – the air
o There is a vaccine for TB and the treatment for TB usually lasts at least six months. What is usually blamed for “failure” to finish the full course of treatment?
o Patient noncompliance
o Briefly describe the concern with the use of racial and ethnic categories as “risk groups”. What do most TB patients have in common, regardless of their nationality?
poverty
o MDRTB and XDRTB are true emergent diseases. Briefly sum up the factors that these emergent diseases derive from.
o Derive from prolonged treatment – when sporadic it allows antibiotic resistant bacteria to flourish
o Failure to assess the correct antibiotic for treatment of specific strains
o Review Paul Farmer’s story of a Peruvian peasant woman living in the slums of north of Lima who developed TB. Why is this saga much more than a case of medical mismanagement? What is the “ultimate” solution to TB?
o MDRTB is essentially untreatable bc of the expenses of drugs – economic development issue, ultimate solution to tb is to focus efforts on economic development bc it is a disease of poverty
in 1980, reports came out of young men in New York City suffering from unusual diseases. What one thing did the victims have in common? What other groups were eventually found to be suffering from the same illness?
- They were gaymen
* Urban immigrants (Haitians), transfusion patients, intravenous drug users,
o In 1987, US President Reagan finally publicly acknowledged the existence of the AIDS epidemic. Who were the disease’s “innocent victims” he mentioned in his speech?
o T5hose who contracted via blood transfusions or the children of intravenous drug users
o HIV was formally recognized as the cause of AIDS in 1984. Outline the three routes HIV is most transmitted by.
o Exchange of bodily fluids: sexual contact, blood to blood contract ,or mother to fetus
o In terms of the history of how the discovery of HIV came about, what did the appearance of the disease among hemophiliacs and those receiving blood transfusions indicate? Who are in the group that became known as the 4-Hs? What was this group then subject to?
o Indicated blood supply might be a source of contamination
o Homosexuals, hemophiliacs, Haitians, heroin addicts – subjected to stigmatization and ostracization
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o Briefly describe how the view of AIDS as “God’s wrath” posed a dilemma for the male gay community. How was the stigmatization that Haitians faced different?
o Was seen as a punishment for being gay – thought that there is something unhealthy about the gay lifestyle- worries abt erosion of rights
o Stigma of Haitians as evil, practices of black magic and voodoo
one mechanism researchers have focused on is bushmeat hunting in Africa. Briefly sum up Stephanie Rupp and colleagues’ argument that the emphasis on a bushmeat hunter as the “index case” of HIV is misplaced.
o Larger context of colonial activities at the time were implicated in the emergence
o The expansion of agriculture, forced labor + labor migration, access to guns for hunting, domestication of primates by colonists, and invasive colonial medical practices
o HIV remains pandemic. Which countries are currently hardest hit by HIV/AIDS? How is HIV transmitted in this region? Briefly describe the social processes that contribute to the spread of HIV in this region.
o Sub Saharan African countries hardest hit – through heterosexual contact and from mothers to fetus
o Colonial period led to men searching for work – few opportunities for female labor resulting in prostitution without use of protection due to gender inequality
• As discussed in the lecture and the text, briefly explain how women’s health is seen as synonymous with reproductive health. In this perspective, whose body is ideal? Whose is defective?
• Reproductivity - men are seen as productive, women are seen as reproductive
o Historically - hysteria - sometimes referring to menopause or just females in general
• Female reproductive physiology is viewed as complicated
o Male physiology as ideal; female as defective
• Women’s reproductive lives have become medicalized
outline various cultural perspectives on conception using the traditional biomedical ‘’story” of the sperm and the egg, the view from the patrilineal society of the Kaulong, and the practices of the Bari of Venezuela as examples.
• Gendered gametes- sperm as male, eggs as female
• Biomedical views of conception reflect the “princess ovum” being “rescued” by a “sperm in shining armor” - conception story around the sperm being active vs passive egg
• Patrilineal societies downplay the contribution to conception
o e.g. kaulong of New Guinea see the female body as housing the fetus placed in the womb by ancestral spirit
• The bari indians of venezuela
o A fetus is nourished and developed over time with repeated washes of semen
o “see how a woman grows fat while the man grows thin”
o A woman’s body is a vessel where men do all the work