Note: This dataset has been archived and is no longer being updated. Contact tracing is the process of contacting all people who have tested positive for COVID-19 or have had contact with someone who tested positive. The software for contact tracing in Connecticut is called ContaCT. ContaCT is used for monitoring the health and wellbeing of people affected by COVID-19 and assists in facilitating timely and accurate contact tracing. This dataset includes the number of attempted and successful contact tracing interviews in the ContaCT system by week. This includes interviews for cases (those who have tested positive for COVID-19) and contacts (those who have been exposed to someone with COVID-19). Data presented are based on a weekly reporting period (Sunday - Saturday). All data are preliminary and are subject to change. Additional information on COVID-19 Contact Tracing can be found here: https://portal.ct.gov/Coronavirus/ContaCT

Note: This dataset has been archived and is no longer being updated. Contact tracing is the process of contacting all people who have tested positive for COVID-19 or have had contact with someone who tested positive. The software for contact tracing in Connecticut is called ContaCT. ContaCT is used for monitoring the health and wellbeing of people affected by COVID-19 and assists in facilitating timely and accurate contact tracing. This dataset includes metrics on COVID-19 cases in the ContaCT system and the contacts associated with those cases for each reporting period, including: Total actionable community cases Attempted interviews within 48 hours - cases Successful interviews within 48 hours - cases Total actionable community contacts Attempted interviews within 48 hours - contacts Successful interviews within 48 hours - contacts Ratio of contacts:cases Number of cases listing at least one contact Median contacts reported Range of contacts reported (min) Range of contacts reported (max) All data are preliminary and are subject to change. Additional information on COVID-19 Contact Tracing can be found here: https://portal.ct.gov/Coronavirus/ContaCT

During a survey conducted in the United Kingdom (UK) on May ***, 2020, the majority of respondents supported the introduction of a contact-tracing app during the coronavirus pandemic. Older age groups were more likely to strongly support the use of a contact-tracing app. For further information about the coronavirus (COVID-19) pandemic, please visit our dedicated Facts and Figures page.

As of July 2020, 21.6 percent of Australia's population had downloaded a government endorsed app made for COVID-19-related contact tracing. In comparison, only 0.4 percent of the Vietnamese population has adopted the use of such apps. Contact tracing apps were also popular in India - the country's 12.5 percent usage penetration of a government-approved app translated to approximately 128 million downloads.

Case investigation and contact tracing are essential strategies for limiting the spread of COVID-19, along with face coverings, social distancing, handwashing and testing. Public Health's Case Investigation and Contact Tracing Team calls King County residents who have recently tested positive for COVID-19 ("cases"). And they call people who were exposed to COVID-19 ("contacts"). The phone calls include an explanation of isolation and quarantine guidelines, how to get testing and support services, and collecting information that helps Public Health's infection control programs.

According to a December 2020 survey of U.S. adults, only * percent of respondents with less than a college education were using a contact tracing app on their mobile phone to trace the spread of COVID-19. However, ** percent of respondents with a post-graduate education reported that they were using contact tracing apps on their mobile phones to trace the spread of COVID-19.

Note: This dataset has been archived and is no longer being updated. COVID Alert CT is Connecticut's voluntary, anonymous, exposure-notification smartphone app. If downloaded, the app will alert users if they have come into close contact with somebody who tests positive for COVID-19. This dataset includes the cumulative and weekly activations for COVID Alert CT for iOS and Android smartphones. The location of app users is not tracked--the app uses Bluetooth technology to detect when another person with the same app comes within 6 feet. The phones exchange a secure code with the each other to record that they were near. The number of codes issued and claimed is also included in this dataset. Data presented are based on a weekly reporting period (Sunday - Saturday). All data are preliminary and are subject to change. Additional information on COVID-19 Contact Tracing can be found here: https://portal.ct.gov/coronavirus/covidalertCT/homepage

According to a December 2020 survey of U.S. adults, only 14 percent of respondents were using a contact tracing app on their mobile phone to trace the spread of COVID-19. In contrast, 86 percent of respondents reported that they were not using any contact tracing apps on their mobile phones to trace the spread of COVID-19.

Comprehensive Covid 19 Contact Tracing Service Market research covering growth analysis and industry intelligence. Access syndicated reports for strategic planning and investment decisions.

NOTE THIS LAYER IS DEPRECATED (last updated 6/7/2022). This was formerly a weekly update. Summary The cumulative total of confirmed COVID-19 cases that have been entered into covidLINK and have been reached for contact tracing interviews as of the date of report. Description As of 12/29/21, contact tracing data, including case counts and percentages, reflect fluctuations in case reporting resulting from a network security incident. In addition, high risk location and large gathering questions were removed from the contact tracing interview questionnaire, as the questions no longer provided actionable information on potential exposure locations due to high levels of COVID-19 community transmission. As of 1/21/22, MDH implemented a new outbound email and text-based contact tracing web survey procedure, reflected in ""Outreach within 24 hours"" metrics." The MD COVID-19 - Contact Tracing Cases Reached and Interviewed data layer reflects the cumulative total of confirmed COVID-19 cases that have been entered into covidLINK and been reached for contact tracing interviews as of the date of report. Individuals that responded to outreach attempts and were verified as the intended call recipient are considered successfully reached. Cases are considered interviewed if they have completed the case investigation interview. Not responding to calls is the primary reason cases are not successfully reached. For cases reached, reasons for not completing an interview include scheduling conflict, hospitalization/incapacitation, and refusal to participate. Data are updated weekly on Wednesday during the 10 a.m. hour (data is reported through the previous Saturday). Terms of Use The Spatial Data, and the information therein, (collectively the "Data") is provided "as is" without warranty of any kind, either expressed, implied, or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct, indirect, incidental, consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data, nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.

According to a December 2020 survey of U.S. adults, ** percent of respondents with a post-graduate education thought that a contact tracing app on their mobile phone to trace the spread of COVID-19 would be very effective at slowing the spread of COVID-19. Only * percent of respondents with a Bachelors degree thought that contact tracing apps on their mobile phones would be very ineffective at slowing the spread of COVID-19.

Contact tracing is a method used worldwide to limit the spread of diseases and has already been used for measles, for example. In Belgium, contact investigation is a collaboration between the Walloon AVIQ, the Services of the United College (COCOM) in Brussels, the Flemish Agency for Care and Health and the Ministry of the German-speaking Community. For the management of the COVID-19 pandemic, a series of data collections were implemented, including the "Script 2A - Call with low-risk contact".

Our COVID-19 response includes disease investigation activities: case interviews, contact tracing, daily follow-ups for positive cases, essential need requests, specialized teams for disease investigations, quality assurance and staffing 24/7 help line for residents to call with COVID-19 related questions.Data Dictionary Field Name Field Type Field Description Week Ending Date The end of the week the report was collated. Total Contacts Integer The total number of contacts Success Integer Contacts that were successfully reached Case Types Text Mode of contact Index Integer Unique identifier Success Rate double rate of success i.e., success contacts/total success * 100 Group Text Category which the case type belong.

Contact tracing includes an interview with the initial case to collect basic information, identify contacts, and provide resources and instructions for isolation. Contact tracing is not conducted for deceased individuals, or residents of jails and long term care facilities. These cases are excluded from this calculation, and are handled in separate and specialized health investigations. Close contacts without valid contact information are not included in the metric. If contact information is identified at a later date, the contact is included in the metric at that time, even though it may have passed the ideal contact window. An individual can be a close contact of multiple positive cases. Three contact attempts are made before a contact is marked loss-to-follow up. The moving average of the percentage of close contacts with a contact attempt within two days will be calculated using a 7-day window, inclusive of the end date. The result will be a 7-day average weighted by the number of cases on that day. Currently, since there are too few days to calculate a 7-day average, each day will build, from a 3-day average on June 14, a 4-day average on June 15, etc., through a 7-day average starting on June 18. We begin reporting on June 12 as data were transitioned to the new contact tracing system between Jun 3rd - Jun 11th, which prevented our ability to accurately estimate the number of call attempts during the transition period. We will build up to a 7-day average on the June 18 notification date. This data is used to calculate the Reopening DC metric with the percentage of close contacts of positive cases with at least one contact attempt is made within two days of case notification to DC Health. Data are subject to change on a daily basis and reported at a 4-day lag for proper analysis.

Supplementary Material for the paper "Contact tracing solutions for COVID-19: applications, data privacy and security"

NOTE: THIS LAYER HAS BEEN DEPRECATED (last updated 5/31/2022). This was formerly a weekly update.

Summary The number of cases interviewed who had a completed answer to the question asking if they had physically gone to work in the last 14 days during their covidLINK interviews.

Description MD COVID-19 - Contact Tracing Cases Reported Employment layer reflects the number of cases interviewed who had a completed answer to the question asking if they had physically gone to work in the last 14 days during their covidLINK interviews. Respondents may indicate more than one category of employment if they have multiple jobs. For a variety of reasons, some individuals choose not to answer particular questions during the course of their interview.

Information about how to prevent and reduce COVID-19 transmission in businesses and workplaces — including for both employers and employees — is available from the Centers for Disease Control and Prevention.

Note the following regarding select employment categories: Childcare/Education: Includes teachers, babysitters, school administrators, etc. Commercial Construction and Manufacturing: Includes poultry/meat processors, electricians, carpenters, HVAC workers, welders, contractors, painters Healthcare: Includes home healthcare and administrative positions in a healthcare setting Restaurant/Food Service: Includes cooks, waitstaff, food delivery personnel, alcohol delivery services, etc. Retail, Essential Worker: Includes grocery and pharmacy workers Retail, Other: Includes all retail establishments that do not sell food or medicine Transportation: Includes positions related to transport of people or goods Other, Non-Public-Facing: Includes workers that do not have direct interactions with the public, including warehouse workers, some office workers, some car mechanics, etc. Other, Public-Facing: Includes workers who have direct interactions with the public such as, but not limited to, administrative/front desk workers, home repair workers, lawncare workers, security guards, etc.

Unknown: Indicates that the interviewer was unable to ascertain the employment category based on the information provided. Answers to interview questions do not provide strong evidence of cause and effect. Due to the nature of COVID-19 and the wide range of scenarios in which a person can become infected, most of the time it will not be possible to pinpoint exactly how and when a case became infected. Though a person may report employment at a particular location, that does not necessarily imply that transmission happened at that location.

The covidLINK interview questionnaire is updated as necessary to capture relevant information related to case exposure and potential onward transmission. These revisions should be taken into consideration when evaluating trends in case responses over time.

Terms of Use The Spatial Data, and the information therein, (collectively the "Data") is provided "as is" without warranty of any kind, either expressed, implied, or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct, indirect, incidental, consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data, nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.

This dataset tracks the updates made on the dataset "MD COVID-19 - Contact Tracing Contacts Reached and Interviewed" as a repository for previous versions of the data and metadata.