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Study · Not a test of the peptide alone · 1990

5 results

An outbreak of hepatitis B associated with jet injections in a weight reduction clinic.

Canter J, Mackey K, Good LS, Roberto RR, Chin J, Bond WW, Alter MJ, Horan JM

Archives of internal medicine1 Sept 1990Cited by 64 (Europe PMC)

PMID2393323 (opens in a new tab)DOI10.1001/archinte.1990.00390200105020 (opens in a new tab)PepBankPUB-02393323
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Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study5

No result from this study comes from a test of the peptide.

Studies that did not test the peptide alone5

In this study, hCG (human chorionic gonadotropin) was a lab tool or a carrier, part of a mix, or the subject of a lab method. These results are not evidence about taking hCG (human chorionic gonadotropin).

  1. 01HumanNot a test of hCG (human chorionic gonadotropin) aloneObservational studySafety outcome

    At a weight reduction clinic giving hCG injections, 21% (60/287) of assessed attendees had evidence of acute hepatitis B infection.

    In plain wordsAt a clinic giving hCG injections, 21% of assessed attendees had evidence of acute hepatitis B infection.

    Peptide
    hCG (human chorionic gonadotropin)
    Outcome
    Not applicableAcute hepatitis B in the clinic cohort
    Study

    n = 287

    Outcome group
    Adverse events · Infection

    Measurements

    Acute hepatitis B infection
    60 persons
    assessed clinic attendees, of 287
    Acute hepatitis B infection
    21%
    assessed clinic attendees

    Source sentences

    Summary
    Of this cohort, 21% (60/287) had evidence of acute infection with hepatitis B virus (either documented clinical cases or antibody to hepatitis B core antigen, IgM positive).
    2 context sentences
    Summary · context
    Clinical history, risk factor assessment, serologic evaluation, and review of clinic injection records were obtained on 287 (84%) of 341 persons who had attended clinic 1 in the first 6 months of 1985.
    Summary · context
    Before the onset of illness, each case-patient had received a series of injections of human chorionic gonadotropin administered by jet injectors at clinic 1.

    In this study, hCG (human chorionic gonadotropin) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking hCG (human chorionic gonadotropin).

  2. 02HumanNot a test of hCG (human chorionic gonadotropin) aloneObservational studySafety outcome

    Among clinic attendees receiving hCG only by jet injector, 24% (57/239) experienced acute hepatitis B infection.

    In plain wordsAmong clinic attendees receiving hCG only by jet injector, 24% experienced acute hepatitis B infection.

    Peptide
    hCG (human chorionic gonadotropin)
    Outcome
    Not applicableAcute hepatitis B after jet injection
    Study

    n = 239

    Outcome group
    Infection and antimicrobial activity · Infection

    Measurements

    Acute hepatitis B infection
    57 persons
    hCG only by jet injector, of 239
    Acute hepatitis B infection
    24%
    hCG only by jet injector

    Source sentences

    Summary
    Of persons who had been given human chorionic gonadotropin at the clinic during the period studied, 24% (57/239) of those receiving human chorionic gonadotropin only by jet injector experienced acute hepatitis B virus infection.
    2 context sentences
    Summary · context
    Before the onset of illness, each case-patient had received a series of injections of human chorionic gonadotropin administered by jet injectors at clinic 1.
    Summary · context
    Clinical history, risk factor assessment, serologic evaluation, and review of clinic injection records were obtained on 287 (84%) of 341 persons who had attended clinic 1 in the first 6 months of 1985.

    In this study, hCG (human chorionic gonadotropin) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking hCG (human chorionic gonadotropin).

  3. 03HumanNot a test of hCG (human chorionic gonadotropin) aloneObservational studySafety outcome

    Among clinic attendees receiving hCG injections only by syringe, none of the 22 persons experienced hepatitis B infection.

    In plain wordsAmong clinic attendees receiving hCG only by syringe, none experienced hepatitis B infection.

    Peptide
    hCG (human chorionic gonadotropin)
    Outcome
    Not applicableAcute hepatitis B after syringe injection
    Study

    n = 22

    Outcome group
    Infection and antimicrobial activity · Infection

    Source sentences

    Summary
    None of the 22 persons who had received injections only by syringe experienced hepatitis B virus infection.
    3 context sentences
    Summary · context
    Of persons who had been given human chorionic gonadotropin at the clinic during the period studied, 24% (57/239) of those receiving human chorionic gonadotropin only by jet injector experienced acute hepatitis B virus infection.
    Summary · context
    Before the onset of illness, each case-patient had received a series of injections of human chorionic gonadotropin administered by jet injectors at clinic 1.
    Summary · context
    Clinical history, risk factor assessment, serologic evaluation, and review of clinic injection records were obtained on 287 (84%) of 341 persons who had attended clinic 1 in the first 6 months of 1985.

    In this study, hCG (human chorionic gonadotropin) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking hCG (human chorionic gonadotropin).

  4. 04HumanNot a test of hCG (human chorionic gonadotropin) aloneObservational studySafety outcome

    At a weight reduction clinic, 31 clinical hepatitis B cases occurred among attendees who received hCG by jet injector before illness.

    In plain wordsAt a weight reduction clinic, 31 hepatitis B cases occurred in attendees who received hCG by jet injector before illness.

    Peptide
    hCG (human chorionic gonadotropin)
    Outcome
    Not applicableClinical hepatitis B cases
    Study

    n: not reported in source

    Outcome group
    Infection and antimicrobial activity · Infection

    Measurements

    Clinical hepatitis B cases
    31 cases
    attendees of weight reduction clinic 1, January 1984 to November 1985

    Source sentences

    Summary
    From January 1984 through November 1985, 31 clinical cases of hepatitis B occurred among attendees of a weight reduction clinic (clinic 1).
    2 context sentences
    Summary · context
    Before the onset of illness, each case-patient had received a series of injections of human chorionic gonadotropin administered by jet injectors at clinic 1.
    Summary · context
    Clinical history, risk factor assessment, serologic evaluation, and review of clinic injection records were obtained on 287 (84%) of 341 persons who had attended clinic 1 in the first 6 months of 1985.

    In this study, hCG (human chorionic gonadotropin) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking hCG (human chorionic gonadotropin).

  5. 05HumanNot a test of hCG (human chorionic gonadotropin) aloneObservational studySafety outcome

    At a clinic giving hCG injections, stopping jet injector use was linked to termination of the hepatitis B outbreak.

    In plain wordsAt a clinic giving hCG injections, stopping jet injector use was linked to the end of the hepatitis B outbreak.

    Peptide
    hCG (human chorionic gonadotropin)
    Outcome
    DecreaseOutbreak termination after stopping jet injectors
    Study

    n: not reported in source

    Outcome group
    Infection and antimicrobial activity · Infection

    Source sentences

    Summary
    Stopping the use of the jet injectors on July 2, 1985, at clinic 1, was associated with the termination of this outbreak.
    2 context sentences
    Summary · context
    Before the onset of illness, each case-patient had received a series of injections of human chorionic gonadotropin administered by jet injectors at clinic 1.
    Summary · context
    Clinical history, risk factor assessment, serologic evaluation, and review of clinic injection records were obtained on 287 (84%) of 341 persons who had attended clinic 1 in the first 6 months of 1985.

    In this study, hCG (human chorionic gonadotropin) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking hCG (human chorionic gonadotropin).

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    14 Oct 2026, 05:02 UTC

    Study results updated

  2. Version 1

    14 Oct 2026, 01:46 UTC

    First added · source update from Europe PMC

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