| Course | PHLT 8072 Communicable Disease Epidemiology |
|---|---|
| Week | Week 6 |
| Paper type | Peer critique reply |
| Length | About 390 words, 3 pages |
| Format | Discussion reply, APA 7 citations |
| School | Walden University |
| Program | PhD in Public Health |
| Updated | October 2026 |
Free sample paper for PHLT 8072 Week 6
Week 6 Discussion: Peer Critique
Right Measure, Wrong Link: A Peer Critique Arguing That Curing Hepatitis C Among People Who Inject Drugs Shrinks the Reservoir but Does Not Protect the Host
Reply to Nadia
Nadia, I agree with your proposal to expand curative hepatitis C treatment for people who inject drugs in your composite county, and I think the measure is one of the strongest available. My disagreement is with the link you assigned it to. You described treatment as protecting the susceptible host. I think it acts on the reservoir instead, and the difference changes what else your plan needs.
In the chain of infection, humans are the only reservoir for hepatitis C (Heymann, 2022). When a person with chronic infection is cured, that person stops carrying the virus and can no longer pass it on through shared equipment. That empties part of the reservoir. Modeling work has shown that scaling up treatment among people who inject could reduce prevalence and incidence in the population, precisely because each cure removes a source of onward transmission (Martin et al., 2013). So treatment works as prevention, but through the reservoir link.
It does not change the host. Clearing the virus, whether naturally or with treatment, leaves no protective immunity. A cured person who goes on sharing cookers or syringes is as open to infection as before. A meta-analysis of reinfection after successful treatment found about six reinfections per 100 person-years among people who were recently injecting (Hajarizadeh et al., 2020). Those authors stress that reinfection rates are lower than primary infection rates in the same populations and should not be a reason to withhold treatment, and I agree.
Here is why the label matters. If treatment protected the host, your plan could stop at treatment. Because it does not, the people you cure need the same protection anyone susceptible needs: sterile syringes, cookers, filters and water, and access to treatment for opioid use disorder. A plan that pairs cure with those measures acts on two links at once. It also gives your evaluation two outcomes to track instead of one: the share of people cured, which measures the reservoir, and the reinfection rate after cure, which measures whether host protection is working.
Would you consider moving treatment to the reservoir row of your chain and adding a host-protection row for people after cure?
References
Hajarizadeh, B., Cunningham, E. B., Valerio, H., Martinello, M., Law, M., Janjua, N. Z., Midgard, H., Dalgard, O., Dillon, J., Hickman, M., Bruneau, J., Dore, G. J., & Grebely, J. (2020). Hepatitis C reinfection after successful antiviral treatment among people who inject drugs: A meta-analysis. Journal of Hepatology, 72(4), 643-657. https://doi.org/10.1016/j.jhep.2019.11.012
Heymann, D. L. (Ed.). (2022). Control of communicable diseases manual (21st ed.). American Public Health Association.
Martin, N. K., Vickerman, P., Grebely, J., Hellard, M., Hutchinson, S. J., Lima, V. D., Foster, G. R., Dillon, J. F., Goldberg, D. J., Dore, G. J., & Hickman, M. (2013). Hepatitis C virus treatment for prevention among people who inject drugs: Modeling treatment scale-up in the age of direct-acting antivirals. Hepatology, 58(5), 1598-1609. https://doi.org/10.1002/hep.26431
The Walden PHLT 8072 Week 6 instructions
The sixth week's discussion generally asks students to critique a classmate's analysis of a disease's chain of infection or proposed control measure. Faculty expect the critique to engage the classmate's specific claim, agree where warranted and correct where the reasoning is flawed, with evidence. Explaining why the correction matters for practice turns a technical point into a useful one. A collegial tone is expected, and ending with a question that leaves room for the classmate to revise is common. Replies commonly run 350 to 450 words with one to three scholarly sources. The best critiques make a single point well rather than several points briefly, and they avoid arguing against a measure when the disagreement is only about how it works.
How this PHLT 8072 Week 6 example is built
The reply opens by endorsing the classmate's measure and stating the precise disagreement. A paragraph explains that humans are hepatitis C's only reservoir and that each cure removes a source of transmission, citing modeling of treatment scale-up. The next paragraph explains that clearance confers no immunity, reporting the reinfection rate from a meta-analysis and noting its authors' view that reinfection should not deter treatment. A paragraph explains why the label matters: if treatment protected hosts, it could stand alone, but because it does not, cured people need sterile equipment and opioid treatment, and the plan gains a second outcome to track. A closing question asks the classmate to move treatment to the reservoir row and add a host-protection row.
Reading the PHLT 8072 Week 6 rubric
Peer critiques are graded on focus, accuracy and helpfulness. The sample earns focus credit by making one disagreement and holding to it. Accuracy is checked in the chain-of-infection reasoning, the reservoir for hepatitis C, the lack of immunity after clearance, and in the evidence cited, including the reinfection rate. Helpfulness comes from explaining why the correction changes the classmate's plan, which the sample does by adding host-protection measures and a second outcome. Agreeing with the measure while correcting its placement shows the kind of collegial precision rubrics reward. A closing question that invites revision, a respectful tone and correctly formatted references secure the remaining points on a typical rubric.
Common PHLT 8072 Week 6 mistakes, and how to avoid them
Critiques of a classmate's chain analysis can slip into arguing about the measure itself when the real issue is how it works. Separate the two, and say clearly which you are addressing. Another common problem is correcting without evidence; if you say cured people can be reinfected, cite a rate. Some replies also stop at the correction without explaining its consequence, which leaves the classmate unsure what to change. Tie your point to their plan. Avoid piling on several objections; one well-argued point is more useful. Keep the tone collegial and end with a question. Finally, be careful not to imply that treatment should be withheld, which would misread the evidence. A custom critique of a classmate's actual post can be written for you free.
Get a PHLT 8072 Week 6 example written to your instructions
Paste the classmate's post along with the Week 6 prompt and rubric. The critique restates the measure fairly, identifies the link it truly interrupts, and argues what that correction changes, in a tone aimed at the argument rather than the person. A first critique is free, delivered within 24-48 hours.
More PHLT 8072 papers and PhD in Public Health samples
- PHLT 8072 Week 1: Communicable Disease Scope Post
- PHLT 8072 Week 2: Q Fever Chain of Infection Brief
- PHLT 8072 Week 3: Chikungunya Natural History Profile
- PHLT 8072 Week 4: Hepatitis C Disease Profile
- PHLT 8072 Week 5: Meningococcal Surveillance Memo
- PHLT 8072 Week 7: Measles Outbreak Write-Up
- PHLT 8072 Week 8: Measles Program Appraisal
- PHLT 8072 Week 9: Q Fever Control Comparison
- PHLT 8072 Week 10: Melioidosis Emerging Threat Brief
- PHLT 8072 Week 11: Syringe Services Control Argument
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- PHLT 8062 Week 6: JBI Critical Appraisal
PHLT 8072 Week 6 questions, answered
Why does the link matter if the measure is the same?
The link decides what the measure can achieve and what else is needed. A host measure would protect a person going forward; a reservoir measure lowers the number of people able to transmit but leaves each cured person open to reinfection. That difference shapes whether treatment can stand alone. A custom critique argues the link for whichever measure your classmate actually proposed.
Is the reply arguing against hepatitis C treatment?
Not at all. It supports the classmate's measure and corrects only where the measure sits in the chain. Treatment decisions for any individual rest with clinicians, and the critique is silent on them. Its residents, like the county they live in, are fictional. Your own critique may disagree with a classmate far more sharply, and the version written for you matches the strength of disagreement your post needs.
Where can I find a free PHLT 8072 Week 6 sample paper?
The complete Week 6 peer critique is published here, arguing that curing hepatitis C acts on the reservoir rather than the host and showing what that means for a classmate's plan. The cited studies are real.
Why does treatment act on the reservoir rather than the host?
Humans are the only reservoir for hepatitis C, and each cure removes a person who could transmit. But clearing the virus leaves no immunity, so the cured person is as susceptible as before; host protection requires other measures such as sterile equipment.
How common is hepatitis C reinfection after cure?
A meta-analysis estimated about six reinfections per 100 person-years among people who were recently injecting drugs after successful treatment. Its authors noted this is lower than primary infection rates and should not be a reason to withhold treatment.