Kapil K Saharia1, Shweta Anjan2, Judy Streit3, Susan E Beekmann3, Philip M Polgreen3, Matthew Kuehnert4, Dorry L Segev5, John W Baddley1, Rachel A Miller6. 1. Institute of Human Virology, Division of Infectious Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA. 2. Department of Medicine, Division of Infectious Diseases, University of Miami Miller School of Medicine, Miami, Florida, USA. 3. Department of Medicine, Division of Infectious Diseases, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA. 4. Department of Medicine, Hackensack Meridian School of Medicine, Hackensack, New Jersey, USA. 5. Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA. 6. Department of Medicine, Division of Infectious Diseases, Duke University School of Medicine, Durham, North Carolina, USA.
Abstract
BACKGROUND: Solid organ transplant recipients (SOTR) have diminished humoral immune responses to COVID-19 vaccination and higher rates of COVID-19 vaccine breakthrough infection than the general population. Little is known about COVID-19 disease severity in SOTR with COVID-19 vaccine breakthrough infections. METHODS: Between 4/7/21 and 6/21/21, we requested case reports via the Emerging Infections Network (EIN) listserv of SARS-CoV-2 infection following COVID-19 vaccination in SOTR. Online data collection included patient demographics, dates of COVID-19 vaccine administration, and clinical data related to COVID-19. We performed a descriptive analysis of patient factors and evaluated variables contributing to critical disease or need for hospitalization. RESULTS: Sixty-six cases of SARS-CoV-2 infection after vaccination in SOTR were collected. COVID-19 occurred after the second vaccine dose in 52 (78.8%) cases, of which 43 (82.7%) occurred ≥14 days post-vaccination. There were six deaths, three occurring in fully vaccinated individuals (7.0%, n = 3/43). There was no difference in the percentage of patients who recovered from COVID-19 (70.7% vs. 72.2%, p = .90) among fully and partially vaccinated individuals. We did not identify any differences in hospitalization (60.5% vs. 55.6%, p = .72) or critical disease (20.9% vs. 33.3%, p = .30) among those who were fully versus partially vaccinated. CONCLUSIONS: SOTR vaccinated against COVID-19 can still develop severe, and even critical, COVID-19 disease. Two doses of mRNA COVID-19 vaccine may be insufficient to protect against severe disease and mortality in SOTR. Future studies to define correlates of protection in SOTR are needed.
BACKGROUND: Solid organ transplant recipients (SOTR) have diminished humoral immune responses to COVID-19 vaccination and higher rates of COVID-19 vaccine breakthrough infection than the general population. Little is known about COVID-19 disease severity in SOTR with COVID-19 vaccine breakthrough infections. METHODS: Between 4/7/21 and 6/21/21, we requested case reports via the Emerging Infections Network (EIN) listserv of SARS-CoV-2 infection following COVID-19 vaccination in SOTR. Online data collection included patient demographics, dates of COVID-19 vaccine administration, and clinical data related to COVID-19. We performed a descriptive analysis of patient factors and evaluated variables contributing to critical disease or need for hospitalization. RESULTS: Sixty-six cases of SARS-CoV-2 infection after vaccination in SOTR were collected. COVID-19 occurred after the second vaccine dose in 52 (78.8%) cases, of which 43 (82.7%) occurred ≥14 days post-vaccination. There were six deaths, three occurring in fully vaccinated individuals (7.0%, n = 3/43). There was no difference in the percentage of patients who recovered from COVID-19 (70.7% vs. 72.2%, p = .90) among fully and partially vaccinated individuals. We did not identify any differences in hospitalization (60.5% vs. 55.6%, p = .72) or critical disease (20.9% vs. 33.3%, p = .30) among those who were fully versus partially vaccinated. CONCLUSIONS: SOTR vaccinated against COVID-19 can still develop severe, and even critical, COVID-19 disease. Two doses of mRNA COVID-19 vaccine may be insufficient to protect against severe disease and mortality in SOTR. Future studies to define correlates of protection in SOTR are needed.
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