ArticlePreventive medicine2022
Changes in infectivity, severity and vaccine effectiveness against delta COVID-19 variant ten months into the vaccination program: The Israeli case.
Article in Preventive medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed.
- Modeling and inference of mixed dynamics and detection of causal emergent features.Scientific reports · 2026Article
- Is long-term disruption of the renin-angiotensin-aldosterone system associated with long COVID? A retrospective cohort study among healthcare workers.BMC infectious diseases · 2026Article
- Longitudinal dynamic clinical phenotypes of in-hospital COVID-19 patients across three dominant virus variants in New York.International journal of medical informatics · 2024Article
- Article
- COVID-19 Epidemiology during Delta Variant Dominance Period in 45 High-Income Countries, 2020-2021.Emerging infectious diseases · 2023Article
- COVID-19-Related Testing, Knowledge and Behaviors among Severe and Chronic Non-Communicable Disease Patients in Neno District, Malawi: A Prospective Cohort Study.International journal of environmental research and public health · 2023Article
- Trajectories of Seroprevalence and Neutralizing Activity of Antibodies against SARS-CoV-2 in Southern Switzerland between July 2020 and July 2021: An Ongoing, Prospective Population-Based Cohort Study.International journal of environmental research and public health · 2023Article
- Lidocaine reinforces the anti-inflammatory action of dexamethasone on myeloid and epithelial cells activated by inflammatory cytokines or SARS-CoV-2 infection.Biomedical journal · 2023Article
- Five waves of the COVID-19 pandemic and green-blue spaces in urban and rural areas in Poland.Environmental research · 2023Article
- Clinico-epidemiological profile and outcome of infected health care workers during the three consecutive waves of COVID-19 pandemic: a longitudinal cohort study.Therapeutic advances in vaccines and immunotherapy · 2023Article
- Development and validation of self-monitoring auto-updating prognostic models of survival for hospitalized COVID-19 patients.Nature communications · 2022Article
- Cost-Effectiveness of COVID-19 Sequential Vaccination Strategies in Inactivated Vaccinated Individuals in China.Vaccines · 2022Article
- SARS-CoV-2 Secondary Attack Rates in Vaccinated and Unvaccinated Household Contacts during Replacement of Delta with Omicron Variant, Spain.Emerging infectious diseases · 2022Article
- Impacts of exposure to air pollution, radon and climate drivers on the COVID-19 pandemic in Bucharest, Romania: A time series study.Environmental research · 2022Observational
- Effectiveness of COVID-19 Vaccine Booster Shot Compared with Non-Booster: A Meta-Analysis.Vaccines · 2022Review
- COVID-19 in European Soccer: A Public 2-Year Comparison of COVID-19 Case Management and Case Characteristics between the 1st Bundesliga, La Liga, Serie A and the Premier League.Life (Basel, Switzerland) · 2022Article
- Safety of third SARS-CoV-2 vaccine (booster dose) during pregnancy.American journal of obstetrics & gynecology MFM · 2022Article
- COVID-19 related maternal mortality cases in associated with Delta and Omicron waves and the role of lung ultrasound.Turkish journal of obstetrics and gynecology · 2022Article
- Article
- The Role of Risk Perception in Students' COVID-19 Vaccine Uptake: A Longitudinal Study.Vaccines · 2021Article
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Authors and funding
3 authors.
Funding
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Abstract
We present epidemiological data to examine trends in COVID-19 incidence, morbidity and mortality in Israel as well as changes in vaccine effectiveness, and discuss the impact of the delta variant and the third, "booster", vaccine. A retrospective-archive study was conducted from February 27th 2020 to October 16th, 2021. Data were obtained from the Israeli Ministry of Health's open COVID 19 database, including PCR-confirmed cases, number hospitalized - including severe cases, death rate, all by age and vaccination status, case fatality rate and changing effectiveness of the vaccine. After three COVID waves, confirmed cases rose from under 30 new daily cases in mid-June to a high of 11,000 in early September 2021. Severe hospitalized cases and death rates were lower than in previous waves and largely restricted to those not fully vaccinated. In the first three months of the vaccination campaign, non-vaccinated population demonstrated much higher morbidity rates. Four months after vaccination began, this gap was attenuated, with low rates of infection and hospitalization in all groups. The gap was regained following uptake of the third vaccine. Data from the fourth wave show reduced hospitalizations and mortality compared to previous waves and suggest that this may be related to high vaccine coverage. These trends suggest that countries with high vaccination might adopt a more permissive approach towards COVID even in the face of new variants.
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