scholarly journals Secondary Attack Rate of COVID-19 in Non-Household Contacts - A Systematic Review of Global Studies

2020 ◽  
Vol 52 (04) ◽  
pp. 97-107
Author(s):  
Komal Shah ◽  
Keyword(s):  
Systematic Review ◽  
Health Care ◽  
Attack Rate ◽  
Global Studies ◽  
Household Contacts ◽  
Care Workers ◽  
Prolonged Contact ◽  
Data Gaps ◽  
Casual Contact ◽  
Close Family

Objective: Secondary Attack Rate (SAR) of COVID-19 varies across various populations. We aim to assess global articles reporting SAR in non-household contacts of COVID-19 patients through systematic review approach. Methods: Four databases - MEDLINE, SCOPUS, Google Scholar and EMBASE were systematically searched for retrieval of articles reporting SAR of COVID-19 in various contacts. Initial search provided 436 articles, which through series of evaluation finally yielded 14 articles. Result: Findings suggested that SAR in various contacts varies widely. Substantial number of studies (50%) were from China; however, the two largest studies were from India. Irrespective of type of contacts, overall SAR ranged from 0.55-6%. Highest risk was found from non-household close (family, friends) contacts (2.2-22.31%) followed by casual contact (travel, meal and health-care contacts). In spite of prolonged contact with the patients, SAR was lowest in health-care workers (0-7.3%). Review highlighted that the included studies were suffering from limitations of missing data and continuously evolving operational guidelines. Conclusion: The review showed that studies furnishing SAR data in non-household contacts are limited in number and exact mode of transmission is yet not clear. Six-percent of overall SAR indicates that though the disease is infectious in nature and proper precautions must be taken, not everybody that comes in contact with the index case is infected. However, with greater risk in non-household close contacts, it is important to identify vulnerable population and implement effective preventive strategies in them. Review also indicated serious data gaps in the published literature and stipulated need of more global studies.

scholarly journals Risk of Secondary Household Transmission of COVID-19 from Health Care Workers in a Hospital in Spain

Epidemiologia ◽  
2021 ◽  
Vol 3 (1) ◽  
pp. 1-10
Author(s):  
Miren Remón-Berrade ◽  
Sara Guillen-Aguinaga ◽  
Isabel Sarrate-Adot ◽  
Maria Pilar Garcia-Garcia ◽  
Maria del Carmen Lerga-Berruezo ◽  
...  
Keyword(s):  
Risk Factors ◽  
Health Care ◽  
Health Care Workers ◽  
Attack Rate ◽  
Index Case ◽  
Acute Infection ◽  
Transmission Risk ◽  
Household Contacts ◽  
Care Workers ◽  
Index Cases

Background: Hospital health care workers are at high risk of developing COVID-19 and transmitting the disease to their family upon returning home; the aim here is to estimate the secondary attack rate of COVID-19 in household contacts of health care workers and their transmission risk factors. Material and Methods: COVID-19 cases in the health care workers of an academic hospital in Pamplona, Spain, from 2 March to 26 May 2020, were followed up. The secondary attack rate (SAR) was estimated from cases in household contacts of index cases and their risk factors by Poisson regression. Results: 89 index cases were studied from 99 notified cases in health care workers (89.0%), excluding secondary cases or those who lived alone. Forty-six secondary cases confirmed by the laboratory were found among 326 household contacts, a secondary attack rate of 14.11% (95% CI 10.75–18.31), and 33 household contacts with acute infection symptoms without microbiologic confirmation 10.12% (95% CI 7.30–13.87). Considering all the cases, the secondary attack rate was 27.3 (95% CI 22.75–32.38). Risk factors were the gender and profession of the index case, the number of people living in the household, and the number of persons per bedroom. When the index case health worker used a single room, it had a protective effect, with an incidence rate ratio (IRR) of 0.493 (95% CI 0.246–0.985); Conclusions: The secondary attack rate found among household contacts of health care workers is high. The preventive isolation of health care workers in individual rooms in their house may reduce the transmission in their families.

scholarly journals Nationwide Seroprevalence of SARS-CoV-2 IgG Antibodies among Four Groups of Primary Health-Care Workers and Their Household Contacts 6 Months after the Initiation of the COVID-19 Vaccination Campaign in France: SeroPRIM Study Protocol

Pathogens ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 911
Author(s):  
Marie Pouquet ◽  
Dorine Decarreaux ◽  
Pol Prévot-Monsacré ◽  
Corentin Hervé ◽  
Andréas Werner ◽  
...  
Keyword(s):  
Health Care ◽  
Primary Health Care ◽  
Health Care Workers ◽  
Phase 1 ◽  
Vaccination Campaign ◽  
Igg Antibodies ◽  
Household Contacts ◽  
Primary Health ◽  
Care Workers ◽  
Natural Protection

Background: The protocol study will focus on the seroprevalence of IgG antibodies to SARS-CoV-2 achieved by vaccination and/or natural protection as well as the history, symptoms, and risk factors for SARS-CoV-2 in four primary health-care workers (PHCWs) and their household contacts in metropolitan France. Methods: Here, we propose a protocol for a nationwide survey to determine the seroprevalence of IgG antibodies to SARS-CoV-2 achieved by vaccination and/or natural protection in four PHCW populations (general practitioners, pediatricians, pharmacists and assistants, and dentists and assistants) and their household contacts. Participants will be included from June to July 2021 (Phase 1) among PHCW populations located throughout metropolitan France. They will be asked to provide a range of demographic and behavioral information since the first SARS-CoV-2 wave and a self-sampled dried blood spot. Phase 1 will involve also a questionnaire and serological study of PHCWs’ household contacts. Seroprevalence will be estimated using two ELISAs designed to detect specific IgG antibodies to SARS-CoV-2 in humoral fluid, and these results will be confirmed using a virus neutralization test. This study will be repeated from November to December 2021 (Phase 2) to evaluate the evolution of immune status achieved by vaccination and/or natural protection of PHCWs and to describe the history of exposure to SARS-CoV-2.

scholarly journals A Systematic Review and Provisional Metanalysis on Psychopathologic Burden on Health Care Workers of Coronavirus Outbreaks

2020 ◽  
Vol 11 ◽  
Author(s):  
Federica Galli ◽  
Gino Pozzi ◽  
Fabiana Ruggiero ◽  
Francesca Mameli ◽  
Marco Cavicchioli ◽  
...  
Keyword(s):  
Systematic Review ◽  
Health Care ◽  
Health Care Workers ◽  
Care Workers

scholarly journals Closing delivery gaps in the treatment of tuberculosis infection: Lessons from implementation research in Peru

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0247411
Author(s):  
Courtney M. Yuen ◽  
Ana Karina Millones ◽  
Daniela Puma ◽  
Judith Jimenez ◽  
Jerome T. Galea ◽  
...  
Keyword(s):  
Health Care ◽  
Health Care Workers ◽  
Implementation Research ◽  
Health Workers ◽  
Preventive Treatment ◽  
Interferon Gamma Release Assay ◽  
Household Contacts ◽  
Care Cascade ◽  
Care Workers ◽  
Treatment Support

Background Targeted testing and treatment of TB infection to prevent disease is a pillar of TB elimination. Despite recent global commitments to greatly expand access to preventive treatment for TB infection, there remains a lack of research on how best to expand preventive treatment programs in settings with high TB burdens. Methods We conducted implementation research in Lima, Peru, around a multifaceted intervention to deliver TB preventive treatment to close contacts of all ages, health care workers, and people in congregate settings. Key interventions included use of the interferon gamma release assay (IGRA), specialist support for generalist physicians at primary-level health facilities, and treatment support by community health workers. We applied a convergent mixed methods approach to evaluate feasibility and acceptability based on a care cascade framework. Findings During April 2019-January 2020, we enrolled 1,002 household contacts, 148 non-household contacts, 107 residents and staff of congregate settings, and 357 health care workers. Cumulative completion of the TB preventive care cascade was 34% for contacts <5 years old, 28% for contacts 5–19 years old, 18% for contacts ≥20 years old, 0% for people in congregate settings, and 4% of health care workers. IGRA testing was acceptable to adults exposed to TB. Preventive treatment was acceptable to contacts, but less acceptable to physicians, who frequently had doubts about prescribing preventive treatment for adults. Community-based treatment support was both acceptable and feasible, and periodic home-visits or calls were identified as facilitators of adherence. Conclusions We attempted to close the gap in TB preventive treatment in Peru by expanding preventive services to adult contacts and other risk groups. While suboptimal, care cascade completion for adult contacts was consistent with what has been observed in high-income settings. The major losses in the care cascade occurred in completing evaluations and having doctors prescribe preventive treatment.

Prevalence and causes of unreported needle stick injuries among health care workers: a systematic review and meta-analysis

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Razieh Behzadmehr ◽  
Abbas Balouchi ◽  
Mehran Hesaraki ◽  
Farshid Alazmani Noodeh ◽  
Hosein Rafiemanesh ◽  
...  
Keyword(s):  
Systematic Review ◽  
Health Care ◽  
Health Care Workers ◽  
Health Workers ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Needle Stick ◽  
Care Workers ◽  
Needle Stick Injuries

Abstract Objectives Health care workers (HCWs) are exposed to needle needles daily. Despite individual studies, there is no statistics on the prevalence of unreported needle stick injuries (NSIs) have been reported. This study was performed to determine the prevalence and causes of unreported NSIs among HCWs. Content In present systematic review and meta-analysis study, three international databases (Web of Science, Scopus, PubMed) were searched from January 1, 2000 to December 31, 2018. The random model was used to determine the prevalence of unreported needle stick among HCWs. Summary and outlook Forty-one studies performed on 19,635 health care workers entered the final stage. Based-on random effect model, pooled prevalence of unreported needle stick injuries was 59.9% (95% CI: 52.0, 67.7; I2=98.9%). The most common cause of unreported NSIs was: They were not worried about NSIs (n=12). The high prevalence of unreported needle sticks injuries indicates the urgency and necessity of paying attention to strategies to improve reporting among health workers.

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