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All Things Covid-19: Transmission

COVID-19 Transmission Resources

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Association of State-Issued Mask Mandates and Allowing On-Premises Restaurant Dining with County-Level COVID-19 Case and Death Growth Rates - United States, March 1-December 31, 2020 MMWR 12-MAR-2021
SARS-CoV-2 B.1.1.7 variant of concern detected in a pet dog and cat after exposure to a person with COVID-19, USA Transbound Emerg Dis 07-MAY-2021 
The existence, spread, and strategies for environmental monitoring and control of SARS-CoV-2 in environmental media Sci Total Environ 07-JUL-2021
The role of schools and school-aged children in SARS-CoV-2 transmission The Lancet 08-DEC-2020
Adolescent with COVID-19 as the source of an outbreak at a 3-week family gathering - Four States, July-July 2020.  Eleven out of 14 attendees developed COVID-19. Six other family members who maintained physical distancing by remaining out doors did not develop COVID-19.  MMWR OCT 2020
Epidemiology of COVID-19 infection in young children under five years: A systematic review and meta-analysis. meta-analysis estimates suggest that 50% of young COVID-19 cases were under one year old, 53% were male, 43% were asymptomatic, and 7% had severe disease that required intensive-care-unit admission. Although all the children in the study had a confirmed diagnosis of COVID-19, 71% were treated with antibiotics. Vaccine 05-DEC-2020.
Antibody responses 8 months after asymptomatic or mild SARS-CoV-2 infection. Antibody positivity differed significantly between the immunoassay methods, suggesting a possible explanation for previous studies’ findings of waning humoral immunity in survivors of asymptomatic or mild COVID-19. Emerging Infectious Diseases MAR-2021
Shedding of Viable SARS-C-oV-2 after Immunosuppressive Therapy for Cancer  A case series of 20 immunosuppressed patients found viable virus for more than 20 days in 3 of the patients, with virus detectable for 25, 26, and 61 days;  NEJM 01-DEC-2020
Persistence and Evolution of SARS-CoV-2 in an Immunocompromised Host  Immunosuppressed patients may experience prolonged viral shedding with presumed persistent infectious status.  NEJM Correspondence 03-DEC-2020
COVID-19 Disinfectants : Try "browse all" to see full list of disinfectants, contact time required, active ingredients, and more.  (EPA) Environmental Protection Agency
SARS-CoV-2 Superspreader Events Jnl of Infection 25-NOV-2020
Outdoor Transmission of SARS-CoV-2 and other respiratory viruses, a Systematic Review Jnl of Infectious Diseases, 29-NOV-2020
The effect of temperature on persistence of SARS-CoV-2 on common surfaces Virology Journal 07-OCT-2020 .  At temperatures of 20°C (about 68°F) viable virus was isolated for up to 28 days from glass, stainless steel, and paper money.
Risk of SARS-CoV-2 transmission by aerosols, the rational use of masks, and protection of healthcare workers from COVID-19. Antimicrob Resist Infect Control  08-JUL-2020
Social distancing alters the clinical course of COVID-19 in young adults: A comparative cohort study   Clinical Infectious Diseases 29-JUN-2020
What is the evidence to support the 2-metre social distancing rule to reduce COVID-19 transmission? CEBM. 22-JUN-2020
Identifying airborne transmission as the dominant route for the spread of COVID-19 Proc Natl Acad Sci USA 13-JUN-2020
APIC - Association for Professionals in Infection Control & Epidemiology Infection Prevention, Patient & Healthcare Advocacy

Asymptomatic Transmission, the Achilles’ Heel of Current Strategies to Control Covid-19

NEJM Editorial 24-APR-2020
Humans, Viruses, and the Eye—An Early Report From the COVID-19 Front Line JAMA Ophthalmology 31-MAR-2020.  Conjunctivae may be a source of transmission

HonorHealth Ambulatory COVID-19 Testing Algorithm

printable PDF; last updated 3/26/20
Not so fast using CPAPs in place ventilators. They could spread coronavirus. California Healthline  March 27, 2020
Preparation for possible sustained transmission of 2019 novel coronavirus: lessons from previous epidemics JAMA Vieiwpoint

Interim Guidance for Implementing Home Care of People Not Requiring Hospitalization for COVID-19 

CDC guidance for people coordinating home care & isolation of people with confirmed or suspected infection, including persons under investigation.  

Evaluating and Testing Persons for COVID-19

CDC Criteria for lab tests, recommendations for specimen collection, patient priortization.

Preventing the Spread of Coronavirus Disease 2019 in Homes and Residential Communities

CDC Recommendations for household members, partners & caregivers in a non-healthcare setting exposed to (1) a patient with symptomatic or lab-confirmed COVID-19 or (2) a patient under investigation (PUI).

Information for Pediatric Healthcare Providers

CDC guidance on clinical presentation, treatment, prevention

Information for Healthcare Providers: COVID-19 and Pregnant Women

CDC FAQs re:transmission during pregnancy delivery, or breast milk, and infants, 

Discontinuation of In-Home Isolation for Immunocompromised Persons with COVID-19 

CDC guidance for immunocompromised & non-immunocompromised patients
Checklist to Prepare Physician's Offices for COVID-19 AAFP guidelines for ambulatory settings

Therapeutic and triage strategies for 2019 novel coronavirus disease in fever clinics 

An algorithm to follow (The Lancet Respiratory Medicine)
WHO: MythBusters Can COVID-19 be transmitted via mosquito bites?  Does cold weather & snow kill COVID?
Transmission of COVID-19 in teh terminal stage of incubation period: a familiar cluster Int Jnl Infect Dis March 09, 2020.  Case report.
New coronavirus stable for hours on surfaces NIH News Report

Molecular and serological investigation of 2019-nCoV infected patients: implication of multiple shedding routes 

Emerg Microbes Infect

Detection of Novel Coronavirus by RT-PCR in Stool Specimen from Asymptomatic Child, China 

Emerg Infect Dis (CDC) Research Letter

Indirect Virus Transmission in Cluster of COVID-19 Cases, Wenzhou, China, 2020 

Emerg Infect Dis (CDC) Research Letter