Related Experiment Video
Updated: Aug 28, 2025
09:26
Quantification and Whole Genome Characterization of SARS-CoV-2 RNA in Wastewater and Air Samples
Published on: June 30, 2023
1.2K
Inferring risks of coronavirus transmission from community household data
Thomas House1,2,3, Heather Riley1, Lorenzo Pellis1,3
1Department of Mathematics, 5292University of Manchester, Manchester UK.
Statistical Methods in Medical Research
|September 16, 2022
Summary
Understanding COVID-19 household transmission is key. This study analyzed English survey data, revealing transmission probabilities, variant impacts, and risks for patient-facing workers and children.
Area of Science:
- Epidemiology
- Infectious disease transmission
- Public health
Background:
- Government responses to COVID-19 focused on controlling household transmission.
- Understanding transmission dynamics within households is crucial for effective public health strategies.
Purpose of the Study:
- To analyze within- and between-household transmission of COVID-19.
- To quantify transmission risks associated with different variants, occupations, and age groups.
Main Methods:
- Exploratory, residual-based, and transmission-dynamic household analysis.
- Utilized Office for National Statistics COVID-19 Infection Survey data (April 2020 - July 2021) in England.
Main Results:
- Within-household transmission probability estimated at 15-35%.
- Alpha variant ~50% more infectious than wildtype; Delta ~35% less infectious than Alpha.
- Increased risk of household infection for patient-facing workers (pre-vaccine) and school-aged children when schools were open.
Conclusions:
- Household transmission rates varied with epidemic and vaccination progress.
- COVID-19 variants and specific demographics significantly influenced household infection risk.
- Findings inform targeted public health interventions for household settings.
Related Concept Videos
01:25Transmission-based Precautions II: Airborne and Protective Environment
1.4K
Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions.
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
1.4K
01:17Transmission-based Precautions I: Contact, Enteric, and Droplets
3.9K
Transmission-based precautions are for patients known to be infected or suspected to be infected or colonized with organisms that pose a significant risk to others. Some transmission-based precautions include contact, enteric, and droplet.
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
3.9K
01:26Factors Affecting the Risk of Infection
12.2K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
12.2K
01:12Relative Risk
303
Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...
303
01:26Principles of Disease Surveillance
172
Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
172
01:22Healthcare Associated Infections II: Preventive Measures
2.8K
Essential infection prevention measures are based on the knowledge of the infection chain, the modes of transmission in healthcare settings, and the use of the best practices in all healthcare settings. Compulsory public reporting of healthcare-associated infection rates is needed to allow individuals and the community to make informed choices regarding selecting a healthcare facility.
The best practices for preventing healthcare-associated infections include hand hygiene, patient risk...
The best practices for preventing healthcare-associated infections include hand hygiene, patient risk...
2.8K