Evidence map›Paper›PMID 26750152›Full record

ReviewEpidemiology and infection2016

Giardiasis outbreaks in the United States, 1971-2011.

E A Adam, J S Yoder, L H Gould, M C Hlavsa, J W Gargano

Open access · bronzeAbstract readReview
In one paragraph

Review in Epidemiology and infection, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
10.9field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 101 citations in OpenAlex.

  1. The history of giardiasis.Parasitology research · 2025
    Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Role of rodents in the zoonotic transmission of giardiasis.One health (Amsterdam, Netherlands) · 2023
    Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Evolving Epidemiology of Reported Giardiasis Cases in the United States, 1995-2016.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2021
    Article
  15. Nosocomial Infections: Do Not Forget the Parasites!Pathogens (Basel, Switzerland) · 2021
    Review
  16. The controversies surroundingCurrent research in parasitology & vector-borne diseases · 2021
    Review
  17. Potential Risk of Three Zoonotic Protozoa (Foods (Basel, Switzerland) · 2020
    Review
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

E A AdamDivision of Foodborne,Waterborne, and Environmental Diseases,National Center for Emerging and Zoonotic Infectious Diseases,Centers for Disease Control and Prevention,Atlanta,GA,USA.
J S YoderDivision of Foodborne,Waterborne, and Environmental Diseases,National Center for Emerging and Zoonotic Infectious Diseases,Centers for Disease Control and Prevention,Atlanta,GA,USA.
L H GouldDivision of Foodborne,Waterborne, and Environmental Diseases,National Center for Emerging and Zoonotic Infectious Diseases,Centers for Disease Control and Prevention,Atlanta,GA,USA.
M C HlavsaDivision of Foodborne,Waterborne, and Environmental Diseases,National Center for Emerging and Zoonotic Infectious Diseases,Centers for Disease Control and Prevention,Atlanta,GA,USA.
J W GarganoDivision of Foodborne,Waterborne, and Environmental Diseases,National Center for Emerging and Zoonotic Infectious Diseases,Centers for Disease Control and Prevention,Atlanta,GA,USA.
Centers for Disease Control and Prevention · USOak Ridge Associated Universities · US

Funding

Intramural CDC HHS CC999999
6 · The paper itself

Abstract

Giardia intestinalis is the leading parasitic aetiology of human enteric infections in the United States, with an estimated 1·2 million cases occurring annually. To better understand transmission, we analysed data on all giardiasis outbreaks reported to the Centers for Disease Control and Prevention for 1971-2011. The 242 outbreaks, affecting ~41 000 persons, resulted from waterborne (74·8%), foodborne (15·7%), person-to-person (2·5%), and animal contact (1·2%) transmission. Most (74·6%) waterborne outbreaks were associated with drinking water, followed by recreational water (18·2%). Problems with water treatment, untreated groundwater, and distribution systems were identified most often during drinking water-associated outbreak investigations; problems with water treatment declined after the 1980s. Most recreational water-associated outbreaks were linked to treated swimming venues, with pools and wading pools implicated most often. Produce was implicated most often in foodborne outbreaks. Additionally, foods were most commonly prepared in a restaurant and contaminated by a food handler. Lessons learned from examining patterns in outbreaks over time can help prevent future disease. Groundwater and distribution system vulnerabilities, inadequate pool disinfection, fruit and vegetable contamination, and poor food handler hygiene are promising targets for giardiasis prevention measures.

Indexed as

Disease OutbreaksGastroenteritisGiardiasisHumansUnited StatesCommunity outbreaksfoodborne infectionsGiardia lambliawaterborne infectionszoonoses

Identifiers

PMID26750152
PMCPMC5150856
OpenAlexW2240105222

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.