/r/epidemiology

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A community for epidemiologists and enthusiasts alike. Share journal articles, news, and anything else that may be related to epidemiology. | |

"Epidemiology is the study of the distribution and determinants of health-related states or events (including disease), and the application of this study to the control of diseases and other health problems." -World Health Organization

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Community Rules

These rules apply to all content submitted to the subreddit and are enforced at moderator discretion. Please be mindful of our requirements for post flair, as well as any current subreddit policies. All subreddit-specific rules and policies are enforced in addition to the Reddit Content Policy.

01. No unverifiable claims

Individuals should be readily able to verify the comments or positions of other users. While citations are not strictly mandatory, it should be reasonably clear what evidence is informing a position. Resources for evaluating: news stories; scholarly sources; & web sources.

02. No misinformation or misleading content

Content should be presented as objectively and with as little alteration as possible. Evidence and supporting data must also be used in ways that are generally accepted as "honest" and not deceitful.

03. No offensive content

Abusive, offensive, or generally unpleasant behavior is unacceptable. For general guidelines on posting, we recommend Rediquette as a starting set of principles.

04. No low-effort content

r/Epidemiology is intended as a place for discussion, not as a stream of consciousness. At a minimum, all posts must be relevant to epidemiology and contain at least one or more points for discussion. Our posting guidelines have more details.

05. No assignment help Everyone needs help with an assignment from time-to-time. We get it. There is a difference between asking for help and asking for someone to do your homework for you, however. Questions that can be easily answered by Google or a few minutes of searching are not appropriate for e/Epidemiology.

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This is an online discussion forum and not a substitute for a local public health office or hospital. Asking for personal recommendations where professional judgement is required is strictly prohibited. Our users are expected to know better than to ask for, or offer, any diagnoses or advice in such an impersonal and unprofessional setting.

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/r/epidemiology

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1

Sti treatment guidelines

Scrubbed

0 Comments
2025/01/31
23:16 UTC

9

BRFSS is scrubbed

just a heads up. i believe r/DataHoarder have a lot/all of the data saved

7 Comments
2025/01/31
23:00 UTC

7

Data-thon?

Anyone know anything about the 'datathon' mentioned in the last paragraph of this article and how one might get in touch or help?

https://www.nytimes.com/2025/01/31/health/trump-cdc-dei-gender.html?unlocked_article_code=1.tU4.zHCY.r11oMEX-iq3N&smid=url-share

1 Comment
2025/01/31
21:31 UTC

16

Youth Risk Behavior Surveillance System (YRBSS) Is Down

The CDC's YRBSS website is down: https://www.cdc.gov/yrbs/index.html. Presumably they will be scrubbing the gender identity question from the most recent surveys and then making it available again.

Remember: “Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.”

0 Comments
2025/01/31
21:04 UTC

40

CDC's YRBS scrubbed

Update from a CDC contact: "cdc is still paralyzed, all centers are removing all gender data outside the binary. all reports with the word 'transgender' are being removed from the website. anything you use and can find and download, please do that now!"

https://preview.redd.it/iynorujdpdge1.png?width=841&format=png&auto=webp&s=b79911cca6d03ed9558ca8619bd421e9ad758880

https://preview.redd.it/7ed5xujdpdge1.png?width=841&format=png&auto=webp&s=1208ff82a3781c2a36895b7d72f8c354f5841442

20 Comments
2025/01/31
17:43 UTC

144

CDC's Social Vulnerability Index removed for an indeterminate amount of time.

42 Comments
2025/01/30
22:37 UTC

7

Need help with search terms (and lit refs are a bonus if you got ‘em!)

I’m not an epidemiologist, but it’s always interested me. I work(ed) in pharmaceutical clinical trials and spent the last 11 years working on TB drugs, so TB epidemiology is a particular interest. My company was big in the TB space and had decades worth of literature on our shared drive, but since getting laid off last fall I don’t have access to it and can’t for the life of me find any of the info I want to reference 😭 I don’t even know what to search since I don’t have any real training in the field, so I’d like to describe a thing and see if anyone can tell me what to look for.

I know there’s a way to estimate a sort of minimum population or minimum incidence rate that will allow a disease to spread. As I recall it’s super low for TB because it’s airborne and can be asymptomatic but infectious for years, but I can’t find any actual quantitative estimates of this. I found a paper from 2013 defining “outbreak threshold” (as a general concept) and that sounds right, but I can’t find the info for TB, and I feel like the TB literature I was reading was older than that anyway. Basically, how low does the incidence have to be for it to die out on its own? (Similar to herd immunity, but assuming a population that’s naive rather than immune.)

I know there’s also a time factor that I think is related to latency period, basically “how long do you have to suppress infection to stop spread”? My memory of this is hazy so I’m not sure if I’m even formulating it correctly, but I know it was of huge interest for both TB and HIV (and the all-too-common combination of both 😭) because they can hang out for decades.

Any help would be greatly appreciated!

Edit: immediately after posting this I stumbled on the term “critical community size,” found a paper modeling TB infection in Kenya, and realized this is all orders of magnitude more complicated than I could have imagined. But I feel like I’ve seen some simplistic estimates somewhere (to be fair it might have been a Gates slide deck too) so I’d still appreciate any input if you have it.

10 Comments
2025/01/29
14:41 UTC

5

Weekly Advice & Career Question Megathread

Welcome to the r/epidemiology Advice & Career Question Megathread. All career and advice-type posts must posted within this megathread.

Before you ask, we might already have your answer! To view all previous megathreads and Advice/Career Question posts, please go here. For our wiki page of resources, please go here.

21 Comments
2025/01/27
15:01 UTC

1

What makes some infectious agents capable of causing Pandemics

Hi all, I’m exploring this question and I really want to be critical about it. We know pandemics require global spread and sustained human-to-human transmission, but what separates pandemic-causing pathogens from those that remain endemic?

High transmissibility: SARS-CoV-2 and influenza have mechanisms (e.g., asymptomatic spread, respiratory transmission) that allow them to reach large populations quickly.

Immune evasion: Many pandemic-causing agents (e.g., influenza, coronaviruses) mutate rapidly or employ immune evasion strategies to bypass host defenses, maintaining their infectious potential.

Zoonotic transmission: Most pandemics start with zoonotic spillovers (e.g., SARS, H1N1). But only those pathogens that adapt to human hosts with efficient transmission reach pandemic scale.

Globalization: Dense urban populations, travel networks, and trade amplify the spread risk, but they can’t cause pandemics alone without the right pathogen traits.

What do you think are the most critical traits or scenarios that determine whether an infectious agent can cause a Pandemic? Are there overlooked factors that deserve attention? What genuinely answers the question??

0 Comments
2025/01/27
11:15 UTC

7

Newcomer in Epidemiology here, I have some questions.

Hello, I'm a MD and a researcher.

Through my researches, I have come to appreciated epidemiology, especially in genetic and public health, and I want to reorient myself on an epidemio research project for a PhD. For this I need a lab.

I already have experience working in labs but those were biochemistry labs. I want to learn more about how it is to work in an epidemiology laboratory.

Please, could you share your experience with me? What made you choose this discipline? How your daily work routine? What do you (dis)like about it?

6 Comments
2025/01/26
15:44 UTC

10

What is the difference between HPAI H5 and H5N1?

I noticed that so far it seems that only H5 is affecting songbirds while H5N1 is affecting larger wild birds and waterfowl; what is the difference between the two strains?

4 Comments
2025/01/26
00:45 UTC

22

Is this worrisome? England declares mandatory enhanced bio security

2 Comments
2025/01/25
13:00 UTC

53

Information on bird flu

Hi all, since CDC has halted MMWR for now, where are you all looking for reliable information about bird flu? In all the chaos I hadn’t been thinking about it and then heard on Rachel Maddow that we’re up to 70 cases in the US.

10 Comments
2025/01/24
16:25 UTC

145

Project 2025 and splitting up CDC

Thus far, the Trump administration is roughly following the plan of Project 2025 (see analysis here: https://www.trackingproject2025.com/). We've all heard about the silencing of the US health adminstrations, but one thing concerning me is that Project 2025 prescribes splitting the CDC into two agencies--one for data and one for "limited policy" (see last couple paragraphs here): https://www.trackingproject2025.com/p/the-register-prints-the-policy?r=54z45w.

25 Comments
2025/01/23
05:38 UTC

121

Trump admin orders federal health agencies to halt communications

Trump admin orders federal health agencies to halt communications

It looks like this pertains to data dashboards, alerts, and publications.

17 Comments
2025/01/22
21:53 UTC

190

Thoughts on the USA withdrawing from WHO?

I'm at the very beginning of my studies, so was just wanting to hear from professionals as to how they think this will impact public health for the American population over the next few years?

47 Comments
2025/01/21
08:32 UTC

2

Weekly Advice & Career Question Megathread

Welcome to the r/epidemiology Advice & Career Question Megathread. All career and advice-type posts must posted within this megathread.

Before you ask, we might already have your answer! To view all previous megathreads and Advice/Career Question posts, please go here. For our wiki page of resources, please go here.

33 Comments
2025/01/20
15:01 UTC

28

CDC: Accelerated Subtyping of Influenza A in Hospitalized Patients

https://www.cdc.gov/han/2025/han00520.html
This came out yesterday. Is this because they are concerned about H2H or is this for the new admin coming in Jan 20th (harder to walk back health policy already in place and looks bad)?

3 Comments
2025/01/17
14:35 UTC

40

Tanzania Faces New Deadly Marburg Outbreak – What Can Be Done to Prevent the Spread?

Tanzania is now facing a deadly outbreak of the Marburg virus, with the World Health Organization issuing warnings about its potential spread. Marburg is a highly contagious and fatal virus, similar to Ebola, and has been responsible for several outbreaks in Africa in recent years. This new outbreak in Tanzania raises concerns about global health risks and the preparedness of countries with weaker healthcare systems.

The WHO has begun monitoring the situation closely, and officials are working to contain the virus and prevent further transmission. As we’ve seen with past outbreaks, the effectiveness of early intervention and public health measures can make all the difference in limiting the spread.

What do you think? Are we doing enough globally to prepare for outbreaks like this, or are we still playing catch-up with these deadly viruses?

Article Reference: Link

2 Comments
2025/01/16
01:11 UTC

5

Weekly Advice & Career Question Megathread

Welcome to the r/epidemiology Advice & Career Question Megathread. All career and advice-type posts must posted within this megathread.

Before you ask, we might already have your answer! To view all previous megathreads and Advice/Career Question posts, please go here. For our wiki page of resources, please go here.

20 Comments
2025/01/13
15:01 UTC

1

Best cancer epi conference?

Hi all,

Do you know what are considered the best epidemiology and cancer epidemiology conferences? I want to present work on renal cell carcinoma using large cohorts, with also some insights into molecular mechanisms with biomarkers and mendelian randomization, and I am struggling to find an appropriate place (I either find too specialized conferences such as obesity related or too broad with too little epi or kidney cancer like AACR).

Thanks a lot for your help!

1 Comment
2025/01/12
11:54 UTC

54

Why is HIV/AIDS so much more prevalent in Southern Africa than other parts of the continent, including its origin region in West/Central Africa?

12 Comments
2025/01/08
09:21 UTC

19

Concentration of novel viruses from China?

With another bird flu variant emerging from China I was stuck by the concentration of novel diseases in a singular country. The only thing on the subject I could find was a article four years ago by a virologist blaming urbanization and consumption of wild animals. (Link below) Does anyone have any scholarship on the apparent concentration?

https://www.usnews.com/news/best-countries/articles/2020-03-04/why-so-many-epidemics-originate-in-asia-and-africa

16 Comments
2025/01/07
12:49 UTC

75

America’s first bird flu death reported in Louisiana

5 Comments
2025/01/06
22:06 UTC

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