- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT00173121
Environmental Enterovirus Monitoring
12. september 2005 opdateret af: National Taiwan University Hospital
From last decades, because of lacking the powerful quantitative methods, such as real-time qPCR, there is no environmental monitoring data about enterovirus transmission.
If the major transmission routes and risk factor are still not clear, it will be very hard for making the prevention and control strategies.
Today, the most popular prevention suggestion for children is keeping them away from crowded public places during the peak contagious season, because enteroviruses are easily transmitted through aerosols over a distance of meters, and even between separated rooms (Chang et al., 2004).
However, adults may as easily be infected, but don』t have any disease symptoms or carry the virus home.
Another recommendation is washing hands to avoid contact of hands or anything else with the mouth and nose, as it is through contact of viruses with the mucosal membranes in the mouth and nasal passages that infection occurs.
However, these actions did not be great helpful for preventing enterovirus infection and spread.
Understanding and disrupting the major transmission pass way of enterovirus could be more effective than just keeping personal hygiene.
Therefore, an applicable environmental monitoring program is needed for understanding the transmission routes and risk factor of enterovirus infection.
In this study, we will monitor enteroviruses in hospital, household and kindergarten.
For the environmental monitoring of enteroviruses, we will apply traditional plaque assay, real-time quantitative PCR and combine with questionnaire-based interviews to understand the infectious types and concentration of enterovirus from indoor air, surface and water for recognizing the transmission routes of enterovirus and the relationships between virus concentration and the symptoms of the cases.
Studieoversigt
Status
Ukendt
Betingelser
Detaljeret beskrivelse
Environmental Monitoring Program for Enterovirus (1) Case Collection.
The studies cases include patients who were suspected of having enterovirus illnesses, such as HFMD and herpangina.
Institutional review board approval was obtained from the Hospital for this study and informed consent was obtained from all patients or their parents.
(2) Questionnaire.
questionnaire based interviews were used to collect information about the family members, including demographic data, the number of bedrooms in the house, amount of contact time with the patient, presence and pattern of current or recent signs and symptoms.
(3) Patient and culture samples.
Laboratory evidence of enterovirus infection was defined as the isolation of enterovirus from a throat , and rectal swab sample.
(4) Environmental Sampling.
(a) Air sampling.
For the filter/real-time qPCR assay, the air in each ward was filtered through a 37-mm-diameter Nuclepore filter (Costar, Cambridge, MA), which is a track-etched polycarbonate filter consisting of a polycarbonate membrane with straight-through pores of uniform size (0.4 μm).
The filters were supported by cellulose pads and loaded into open-face three-piece plastic cassettes.
The pump and filter apparatus were placed within 1 m from the patient's bed on an adjacent nightstand.
(b) Surface sampling Regarding surface sampling, surfaces of environment and equipment were sampled with moistened sterile cotton swabs.
Undersøgelsestype
Observationel
Tilmelding
50
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiekontakt
- Navn: Luan-Yin Chang, MD
- Telefonnummer: 3245 886-2-23123456
- E-mail: ly7077@tpts6.seed.net.tw
Studiesteder
-
-
-
Taipei, Taiwan, 100
- Rekruttering
- National Taiwan University Hsopital
-
Kontakt:
- Luan-Yin Chang, MD, PhD
- E-mail: ly7077@tpts6.seed.net.tw
-
-
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
1 uge til 18 år (Barn, Voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Beskrivelse
Inclusion Criteria:
- any case of enterovirus infection
Exclusion Criteria:
- not enterovirus infection cases
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Efterforskere
- Ledende efterforsker: Luan-Yin Chang Chang, MD, PhD, National Taiwan University Hospital
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart
1. maj 2005
Studieafslutning
1. juni 2005
Datoer for studieregistrering
Først indsendt
12. september 2005
Først indsendt, der opfyldte QC-kriterier
12. september 2005
Først opslået (Skøn)
15. september 2005
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
15. september 2005
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
12. september 2005
Sidst verificeret
1. april 2005
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 9461700414
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
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