Analyzing respiratory viruses after COVID-19 in Hong Kong

Metagenomic Study on the Distributive Pattern of Respiratory Virus in the Community After the Emergence of COVID-19

Observational Chinese University of Hong Kong · NCT05126589

This study is trying to see how COVID-19 has changed the patterns of respiratory viruses in adults in Hong Kong and what that means for flu seasons and symptoms.

Quick facts

Study typeObservational
Enrollment500 (estimated)
Ages18 Years and up
SexAll
SponsorChinese University of Hong Kong Academic / other
Locations1 site (Hong Kong, Hong Kong)
Trial IDNCT05126589 on ClinicalTrials.gov

What this trial studies

This observational study aims to characterize the distribution of respiratory viruses in the upper airway and their relationship with influenza seasons, symptoms, and exposure settings. It will recruit 500 adults from Hong Kong who will complete a bilingual questionnaire and self-collect nasal and throat swabs for metagenomic analysis. Participants will be invited through randomly selected households and will receive a voucher for their time after returning the samples. The study will focus on understanding the impact of COVID-19 on respiratory virus patterns.

Who should consider this trial

Good fit: Ideal candidates are adults residing in Hong Kong who can communicate in English or Chinese.

Not a fit: Patients with mental illnesses or those who are prisoners will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance understanding of respiratory virus dynamics post-COVID-19, potentially informing public health strategies.

How similar studies have performed: While similar studies have been conducted, this specific approach focusing on post-COVID-19 respiratory virus patterns is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* adults normally residing in Hong Kong
* could communicate in English and/or Chinese
* provision of consent

Exclusion Criteria:

* individuals with mental illness
* prisoners

Where this trial is running

Hong Kong, Hong Kong

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions COVID-19 Respiratory Infectionmetagenomicrespiratory virus infectionsexposure risk
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.