Nosocomial outbreak caused by the SARS-CoV-2 Delta variant in a highly vaccinated population,Israel, July 2021 |
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| Authors: | Pnina Shitrit Neta S Zuckerman Orna Mor Bat-Sheva Gottesman Michal Chowers |
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| Affiliation: | 1.Infection Control Unit, Meir Medical Center, Kfar Saba, Israel;2.Sackler Medical School, Tel-Aviv University, Tel-Aviv Israel;3.Central Virology Laboratory, Ministry of Health, Chaim Sheba Medical Center, Tel-Hashomer, Israel;4.Department of Epidemiology and Preventive Medicine, School of Public Health, Sackler Faculty of Medicine, Tel-Aviv University, Israel;5.Infectious Disease Unit, Meir Medical Center, Kfar Saba, Israel |
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| Abstract: | ![]()
A nosocomial outbreak of SARS-CoV-2 Delta variant infected 42 patients, staff and family members; 39 were fully vaccinated. The attack rate was 10.6% (16/151) among exposed staff and reached 23.7% (23/97) among exposed patients in a highly vaccinated population, 16–26 weeks after vaccination (median: 25 weeks). All cases were linked and traced to one patient. Several transmissions occurred between individuals wearing face masks. Fourteen of 23 patients became severely sick or died, raising a question about possible waning immunity. |
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| Keywords: | COVID-19 Israel Delta variant SARS-CoV-2 Nosocomial |
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