HLTC23H3 Lecture 10: Lecture 10-HIV and Health.docx - detailed notes!

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skymammoth432

29 Mar 2012

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Hiv contract hiv through blood, drug use poor wt. gain or wt. loss fatigue enlarge organs faster in children to progress than adults. Tb - bacterial causes in lung tissue reactivation by latent tb. Acceleration of tb - severe form of tb that can be resistant to antibiotics endemical rel. bet. Tb and hiv problem of screening poor endemic control - lot of risks in children in tb and hiv assoc. wiht poverty (structural factors) High rates of disease due to 2 factors. Opportunistic infection addressing tb and use of antiretroviral - slow down prograssion highly active retroviral therapy haart. South africa -high hiv and co infection with tb drug development - prolong life - slow down progression to acquiring aids reduce mortality. Haart - 3-4 antiretro virals costs - expensive push for generic but not all of them are generic. profit making vs. reduced cost reducing mortality and hiv.

Related Questions

Which statement is not a prediction of the hygiene hypothesis?

Children who frequently play outside should develop allergic diseases less often than children who donât play outside.

Children who never wash their hands or bathe will be less likely to develop immune disorders than children who wash regularly.

The more infectious diseases an individual is exposed to as a child, the less likely that the person will be to develop immune disorders as an adult.

Extensive use of antibiotics as a child may affect how the body responds to future bacterial invasions

Pathogens that have long historical associations with humans, such as H. pylori, should be more positively related to immune system function than pathogens with more recent associations.

goldcricket270

Evolutionary theory predicted that bacterial resistance toantibiotics would evolve. Given time and sufficient heritablevariability, living organisms including bacteria) will evolve whena selective pressure (like an antibiotic) is introduced. Butevolutionary theory also gives doctors and patients some specificstrategies for delaying even more widespread evolution ofantibiotic resistance. Some of these strategies are givenbelow:

A. Don't use antibiotics to treat viral infections.

B. Avoid mild doses of antibiotics over long time periods.

C. When treating a bacterial infection with antibiotics, takeall your pills.

D. Use a combination of drugs to treat a bacterial infection. E.Reduce or eliminate the "preventive" use of antibiotics onlivestock and crops.

For each strategy, give a justification based on your knowledgeof bacteria and evolution, why this strategy would reduce thetransmission of antibiotic resistance.

silverwallaby413

You will know if the ant population has reached the carrying capacity (K) of the 2 acre plot when __________.

a) ants are no longer born

b) ants no longer die

c) the ant birth rate equals the death rate

d) there is no longer room for ants to tunnel

e) the birds start eating the ants

As a 4-year old child, your BIOL 1114 instructor contracted mumps, a viral disease. Although he is now middle-aged, he is immune to this disease. Which one of the following is the best hypothesis to explain this observation?

a) The mumps virus can no longer invade his body.

b) He possesses memory cells specific to the mumps virus due to his previous infection.

c) He started to produce more macrophages at age 40 than he did as a child.

d) His DNA mutated as a result of the previous infection with mumps virus.

e) Those morning cups of expresso coffee jump-started his immune system.

The evolution of antibiotic resistance in bacteria is due to which one or more of the following?

a) The antibiotic causes mutations in the bacteria.

b) Natural selection works on the bacteria population.

c) Chance mutations occur in the DNA of the bacteria.

d) Natural selection causes mutations in the bacteria.

e) Both (b) and (c).

Which one or more of the following involve cellular secretion and exocytosis?

a) Your immune systemâs B cells fighting off a strep bacterial infection.

b) Neuron communication with muscles in your hand.

c) Macrophages engulfing a TB bacterium by phagocytosis.

d) Both (a) and (b).

e) Both (b) and (c).

If you were handed a sample of DNA and told that it contained 30% guanine (G), which one or more of the following analyses would youadditionally need to do in order to tell someone the exact % composition of ALL the DNA bases?

a) % T

b) % C

c) % A

d) both (a) and (b)

e) No more analysis is necessary.

azurewolf904

HLTC23H3 Lecture 10: Lecture 10-HIV and Health.docx - detailed notes!

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