In Case You Missed It: MMWR and COVID

Center for Disease Control's Morbidity and Mortality Weekly ReportThe Homeland Security Digital Library (HSDL) maintains a collection of the Centers for Disease Control’s (CDC) Morbidity and Mortality Weekly Report (MMWR), which collects and analyzes data from the United States Department of Health and Human Services (HHS) on epidemiology and public health. Each issue of the MMWR is packed with raw and analyzed public health data and scientific studies from some of the top minds in the United States. In light of the COVID-19 (coronavirus disease 2019) epidemic, we are highlighting some of the most current and informative COVID-related studies included in their weekly reports. 

Here are some important articles you may have missed from Volume 70, Issues 46-49 of the Centers for Disease Control’s Morbidity and Mortality Weekly Report (MMWR) Series. 


December 10, 2021 / No. 49 Featured Article: 

“Comparative Effectiveness and Antibody Responses to Moderna and Pfizer-BioNTech COVID-19 Vaccines among Hospitalized Veterans — Five Veterans Affairs Medical Centers, United States, February 1-September 30, 2021”

From the article: “During February 1–September 30, 2021, mRNA vaccine effectiveness in preventing COVID-19–associated hospitalizations among U.S. veterans ≥120 days after receipt of the second dose was 86% for Moderna and 75% for Pfizer-BioNTech vaccines. Antibody responses to both vaccines decreased over time. Moderna vaccine recipients had higher antibody levels than did Pfizer-BioNTech recipients.”


December 3, 2021 / No. 48 Featured Article:

“Symptoms of Depression, Anxiety, Post-Traumatic Stress Disorder, and Suicidal Ideation Among State, Tribal, Local, and Territorial Public Health Workers During the COVID-19 Pandemic — United States, March-April 2021”

This is a corrected and republished report from the July 2, 2021 MMWR Weekly Report. The correction notes that “some data were inaccurate because 420 incomplete participant responses were incorrectly assigned scores for depression.”  The 420 incomplete participant responses were removed and the report republished with corrected data.  While the “error resulted in a change in overall depression prevalence from 32.0% to 30.8%,” it has been “confirmed that the interpretation and the conclusions of the original report were not affected by these corrections.”


November 26, 2021 / No. 47 Featured Articles: 

“Risk for Stillbirth Among Women With and Without COVID-19 at Delivery Hospitalization — United States, March 2020-September 2021”

From the article: “Among 1,249,634 delivery hospitalizations during March 2020-September 2021, U.S. women with COVID-19 were at increased risk for stillbirth compared with women without COVID-19[.] […] The magnitude of association was higher during the period of SARS-CoV-2 [severe acute respiratory syndrome coronavirus 2] B.1.617.2 (Delta) variant predominance than during the pre-Delta period.”

“COVID-19-Associated Deaths After SARS-CoV-2 Infection During Pregnancy — Mississippi, March 1, 2020-October 6, 2021”

This article studies 15 COVID-19-associated deaths of infected pregnant women (numbering 1,637) in Mississippi from March 1-2020 through October 6, 2021.  The study notes that pre-Delta variant predominance, 5 deaths per 1,000 SARS-CoV-2 infections during pregnancy occurred (6 out of the 15 deaths), whereas during the Delta predominance, 25 deaths per 1,000 SARS-CoV-2 infections during pregnancy occurred (9 out of the 15 deaths).  Further demographics are provided on the women such as age, race, and ethnicity.  None of the women who died had been fully vaccinated against COVID-19.


November 19, 2021 / No. 46 Featured Articles: 

“Impact of Hospital Strain on Excess Deaths During the COVID-19 Pandemic — United States, July 2020-July 2021”

It is well known that any strains on hospitals decrease the standard of patient care as hospitals shift to “crisis standards of care,” where the focus of decision-making moves from achieving the “best outcomes for individual patients” to “addressing the immediate care needs of larger groups of patients.” This article studies how COVID-19 infections affected conditions of hospital strain during July 2020-July 2021 and added to excess deaths.  The article notes that “intensive care unit bed use at 75% capacity is associated with an estimated additional 12,000 excess deaths 2 weeks later. As hospitals exceed 100% ICU bed capacity, 80,000 excess deaths would be expected 2 weeks later.”

“Incidence of SARS-CoV-2 Infection, Emergency Department Visits, and Hospitalizations Because of COVID-19 Among Persons Aged ≥12 Years, by COVID-19 Vaccination Status — Oregon and Washington, July 4-September 25, 2021”

From the article: “Studies have demonstrated that SARS-CoV-2 infection, need for emergency department (ED) visits, and hospitalization were uncommon in fully vaccinated persons before the widespread circulation of the SARS-CoV-2 B.1.617.2 (Delta) variant. […] Among persons aged ≥12 years enrolled in a Pacific Northwest health plan, unvaccinated persons with SARS-CoV-2 infection were approximately twice as likely to receive ED care or to be hospitalized than were vaccinated persons with COVID-19.”

For more information, visit our Coronavirus Disease (COVID-19) Special Collection or our In Focus: 2019 Novel Coronavirus collection. You can also find pandemic-related resources in our HSDL Featured Topics on Pandemics and Epidemics. Please note that an HSDL login is required to view some of these resources. 

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