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Pourriyahi H, Hajizadeh N, Khosravi M, Pourriahi H, Soleimani S, Hosseini NS, Mohammad AP, Goodarzi A. New variants of COVID-19 (XBB.1.5 and XBB.1.16, the "Arcturus"): A review of highly questioned concerns, a brief comparison between different peaks in the COVID-19 pandemic, with a focused systematic review on expert recommendations for prevention, vaccination, and treatment measures in the general population and at-risk groups. Immun Inflamm Dis 2024; 12:e1323. [PMID: 38938013 PMCID: PMC11211615 DOI: 10.1002/iid3.1323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 04/11/2024] [Accepted: 06/07/2024] [Indexed: 06/29/2024] Open
Abstract
INTRODUCTION The COVID-19 pandemic has taken many forms and continues to evolve, now around the Omicron wave, raising concerns over the globe. With COVID-19 being declared no longer a "public health emergency of international concern (PHEIC)," the COVID pandemic is still far from over, as new Omicron subvariants of interest and concern have risen since January of 2023. Mainly with the XBB.1.5 and XBB.1.16 subvariants, the pandemic is still very much "alive" and "breathing." METHODS This review consists of five highly concerning questions about the current state of the COVID Omicron peak. We searched four main online databases to answer the first four questions. For the last one, we performed a systematic review of the literature, with keywords "Omicron," "Guidelines," and "Recommendations." RESULTS A total of 31 articles were included. The main symptoms of the current Omicron wave include a characteristically high fever, coughing, conjunctivitis (with itching eyes), sore throat, runny nose, congestion, fatigue, body ache, and headache. The median incubation period of the symptoms is shorter than the previous peaks. Vaccination against COVID can still be considered effective for the new subvariants. CONCLUSION Guidelines recommend continuation of personal protective measures, third and fourth dose boosters, along with administration of bivalent messenger RNA vaccine boosters. The consensus antiviral treatment is combination therapy using Nirmatrelvir and Ritonavir, and the consensus for pre-exposure prophylaxis is Tixagevimab and Cilgavimab combination. We hope the present paper raises awareness for the continuing presence of COVID and ways to lower the risks, especially for at-risk groups.
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Affiliation(s)
- Homa Pourriyahi
- Student Research Committee, School of MedicineIran University of Medical SciencesTehranIran
| | - Nima Hajizadeh
- School of MedicineIran University of Medical SciencesTehranIran
| | - Mina Khosravi
- School of MedicineIran University of Medical SciencesTehranIran
| | - Homayoun Pourriahi
- Student Research Committee, School of MedicineIran University of Medical SciencesTehranIran
| | - Sanaz Soleimani
- Student Research Committee, School of MedicineIran University of Medical SciencesTehranIran
- Rasool Akram Medical Complex Clinical Research Development Center (RCRDC), School of MedicineIran University of Medical SciencesTehranIran
| | | | | | - Azadeh Goodarzi
- Department of Dermatology, Rasool Akram Medical Complex Clinical Research Development Center (RCRDC), School of MedicineIran University of Medical SciencesTehranIran
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Layton JB, Peetluk L, Wong HL, Jiao Y, Djibo DA, Bui C, Lloyd PC, Gruber JF, Miller M, Ogilvie RP, Deng J, Parambi R, Song J, Weatherby LB, Lo AC, Matuska K, Wernecke M, Clarke TC, Cho S, Bell EJ, Seeger JD, Yang GW, Illei D, Forshee RA, Anderson SA, McMahill-Walraven CN, Chillarige Y, Amend KL, Anthony MS, Shoaibi A. Effectiveness of monovalent COVID-19 booster/additional vaccine doses in the United States. Vaccine X 2024; 16:100447. [PMID: 38318230 PMCID: PMC10840109 DOI: 10.1016/j.jvacx.2024.100447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 02/07/2024] Open
Abstract
Background Monovalent booster/additional doses of COVID-19 vaccines were first authorized in August 2021 in the United States. We evaluated the real-world effectiveness of receipt of a monovalent booster/additional dose of COVID-19 vaccine compared with receiving a primary vaccine series without a booster/additional dose. Methods Cohorts of individuals receiving a COVID-19 booster/additional dose after receipt of a complete primary vaccine series were identified in 2 administrative insurance claims databases (Optum, CVS Health) supplemented with state immunization information system data between August 2021 and March 2022. Individuals with a complete primary series but without a booster/additional dose were one-to-one matched to boosted individuals on calendar date, geography, and clinical factors. COVID-19 diagnoses were identified in any medical setting, or specifically in hospitals/emergency departments (EDs). Propensity score-weighted hazards ratios (HRs) and 95% confidence intervals (CI) were estimated with Cox proportional hazards models; vaccine effectiveness (VE) was estimated as 1 minus the HR by vaccine brand overall and within subgroups of variant-specific eras, immunocompromised status, and homologous/heterologous booster status. Results Across both data sources, we identified 752,165 matched pairs for BNT162b2, 410,501 for mRNA-1273, and 11,398 for JNJ-7836735. For any medically diagnosed COVID-19, meta-analyzed VE estimates for BNT162b2, mRNA-1273, and JNJ-7836735, respectively, were: BNT162b2, 54% (95% CI, 53%-56%); mRNA-1273, 58% (95% CI, 56%-59%); JNJ-7836735, 34% (95% CI, 23%-44%). For hospital/ED-diagnosed COVID-19, VE estimates ranged from 70% to 76%. VE was generally lower during the Omicron era than the Delta era and for immunocompromised individuals. There was little difference observed by homologous or heterologous booster status. Conclusion The original, monovalent booster/additional doses were reasonably effective in real-world use among the populations for which they were indicated during the study period. Additional studies may be informative in the future as new variants emerge and new vaccines become available.Registration: The study protocol was publicly posted on the BEST Initiative website (https://bestinitiative.org/wp-content/uploads/2022/03/C19-VX-Effectiveness-Protocol_2022_508.pdf).
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Affiliation(s)
| | | | - Hui Lee Wong
- US Food and Drug Administration, Center for Biologics Evaluation and Research, Silver Spring, MD, USA
| | | | | | - Christine Bui
- RTI Health Solutions, Research Triangle Park, NC, USA
| | - Patricia C. Lloyd
- US Food and Drug Administration, Center for Biologics Evaluation and Research, Silver Spring, MD, USA
| | - Joann F. Gruber
- US Food and Drug Administration, Center for Biologics Evaluation and Research, Silver Spring, MD, USA
| | | | | | - Jie Deng
- Optum Epidemiology, Boston, MA, USA
| | | | | | | | | | | | | | - Tainya C. Clarke
- US Food and Drug Administration, Center for Biologics Evaluation and Research, Silver Spring, MD, USA
| | - Sylvia Cho
- US Food and Drug Administration, Center for Biologics Evaluation and Research, Silver Spring, MD, USA
| | | | | | | | | | - Richard A. Forshee
- US Food and Drug Administration, Center for Biologics Evaluation and Research, Silver Spring, MD, USA
| | - Steven A. Anderson
- US Food and Drug Administration, Center for Biologics Evaluation and Research, Silver Spring, MD, USA
| | | | | | | | | | - Azadeh Shoaibi
- US Food and Drug Administration, Center for Biologics Evaluation and Research, Silver Spring, MD, USA
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Fu Y, Wu K, Wang Z, Yang H, Chen Y, Wu L, Yanagihara R, Hedges JR, Wang H, Deng Y. Effectiveness of various COVID-19 vaccine regimens among 10.4 million patients from the National COVID Cohort Collaborative during Pre-Delta to Omicron periods - United States, 11 December 2020 to 30 June 2022. Vaccine 2023; 41:6339-6349. [PMID: 37741761 PMCID: PMC10730423 DOI: 10.1016/j.vaccine.2023.08.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/17/2023] [Accepted: 08/25/2023] [Indexed: 09/25/2023]
Abstract
OBJECTIVE This study reports the vaccine effectiveness (VE) of COVID-19 vaccine regimens in the United States, based on the National COVID Cohort Collaborative (N3C) database. METHODS Data from 10.4 million adults, enrolled in the N3C from 11 December 2020 to 30 June 2022, were analyzed. VE against infection and death outcomes were evaluated across 13 vaccine regimens in recipient cohorts during the Pre-Delta, Delta, and Omicron periods. VE was estimated as (1-odds ratio) × 100% by multivariate logistic regression, using the unvaccinated cohort as reference. RESULTS Natural immunity showed a highly protective effect (70.33%) against re-infection, but the mortality risk among the unvaccinated population was increased after re-infection; vaccination following infection reduced the risk of re-infection and death. mRNA-1273 full vaccination plus mRNA-1273 booster showed the highest anti-infection effectiveness (47.59%) (95% CI, 46.72-48.45) in the overall cohort. In the type 2 diabetes cohort, VE against infection was highest with BNT162b2 full vaccination plus mRNA-1273 booster (61.19%) (95% CI, 53.73-67.75). VE against death was also highest with BNT162b2 full vaccination plus mRNA-1273 booster (89.56%) (95% CI, 85.75-92.61). During the Pre-Delta period, all vaccination regimens showed an anti-infection effect; during the Delta period, only boosters, mixed vaccines, and Ad26.COV2.S vaccination exhibited an anti-infection effect; during the Omicron period, none of the vaccine regimens demonstrated an anti-infection effect. Irrespective of the variant period, even a single dose of mRNA vaccine offered protection against death, thus demonstrating survival benefit, even in the presence of infection or re-infection. Similar patterns were observed in patients with type 2 diabetes. CONCLUSIONS Although the anti-infection effect declined as SARS-CoV-2 variants evolved, all COVID-19 mRNA vaccines had sustained effectiveness against death. Vaccination was crucial for preventing re-infection and reducing the risk of death following SARS-CoV-2 infection.
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Affiliation(s)
- Yuanyuan Fu
- Department of Quantitative Health Sciences, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Kaipeng Wu
- Department of Quantitative Health Sciences, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Zhanwei Wang
- Cancer Epidemiology Division, Population Sciences in the Pacific Program, University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Hua Yang
- Department of Quantitative Health Sciences, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Yu Chen
- Department of Quantitative Health Sciences, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Lang Wu
- Cancer Epidemiology Division, Population Sciences in the Pacific Program, University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Richard Yanagihara
- Department of Pediatrics, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Jerris R Hedges
- Departments of Medicine and Surgery, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI 96813, USA
| | - Hongwei Wang
- Department of Medicine, University of Chicago, Chicago, IL, 60637, USA.
| | - Youping Deng
- Department of Quantitative Health Sciences, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI, USA.
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Pierre V, Draica F, Di Fusco M, Yang J, Nunez-Gonzalez S, Kamar J, Lopez S, Moran MM, Nguyen J, Alvarez P, Cha-Silva A, Gavaghan M, Yehoshua A, Stapleton N, Burnett H. The impact of vaccination and outpatient treatment on the economic burden of Covid-19 in the United States omicron era: a systematic literature review. J Med Econ 2023; 26:1519-1531. [PMID: 37964554 DOI: 10.1080/13696998.2023.2281882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 11/07/2023] [Indexed: 11/16/2023]
Abstract
AIMS To identify and synthesize evidence regarding how coronavirus disease 2019 (COVID-19) interventions, including vaccines and outpatient treatments, have impacted healthcare resource use (HCRU) and costs in the United States (US) during the Omicron era. MATERIALS AND METHODS A systematic literature review (SLR) was performed to identify articles published between 1 January 2021 and 10 March 2023 that assessed the impact of vaccination and outpatient treatment on costs and HCRU outcomes associated with COVID-19. Screening was performed by two independent researchers using predefined inclusion/exclusion criteria. RESULTS Fifty-eight unique studies were included in the SLR, of which all reported HCRU outcomes, and one reported costs. Overall, there was a significant reduction in the risk of COVID-19-related hospitalization for patients who received an original monovalent primary series vaccine plus booster dose vs. no vaccination. Moreover, receipt of a booster vaccine was associated with a lower risk of hospitalization vs. primary series vaccination. Evidence also indicated a significantly reduced risk of hospitalizations among recipients of nirmatrelvir/ritonavir (NMV/r), remdesivir, sotrovimab, and molnupiravir compared to non-recipients. Treated and/or vaccinated patients also experienced reductions in intensive care unit (ICU) admissions, length of stay, and emergency department (ED)/urgent care clinic encounters. LIMITATIONS The identified studies may not represent unique patient populations as many utilized the same regional/national data sources. Synthesis of the evidence was also limited by differences in populations, outcome definitions, and varying duration of follow-up across studies. Additionally, significant gaps, including HCRU associated with long COVID and various high-risk populations and cost data, were observed. CONCLUSIONS Despite evidence gaps, findings from the SLR highlight the significant positive impact that vaccination and outpatient treatment have had on HCRU in the US, including periods of Omicron predominance. Continued research is needed to inform clinical and policy decision-making in the US as COVID-19 continues to evolve as an endemic disease.
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Affiliation(s)
- Vicki Pierre
- Evidence Synthesis, Modeling & Communication, Evidera Inc., Bethesda, MD, USA
| | - Florin Draica
- Vaccine Clinical Research, Pfizer Inc., New York, NY, USA
| | | | - Jingyan Yang
- Vaccine Clinical Research, Pfizer Inc., New York, NY, USA
| | | | - Joanna Kamar
- Evidence Synthesis, Modeling & Communication, Evidera Inc., Bethesda, MD, USA
| | - Santiago Lopez
- Vaccine Clinical Research, Pfizer Inc., New York, NY, USA
| | - Mary M Moran
- Vaccine Clinical Research, Pfizer Inc., New York, NY, USA
| | | | - Piedad Alvarez
- Evidence Synthesis, Modeling & Communication, Evidera Inc., Bethesda, MD, USA
| | | | | | - Alon Yehoshua
- Vaccine Clinical Research, Pfizer Inc., New York, NY, USA
| | - Naomi Stapleton
- Evidence Synthesis, Modeling & Communication, Evidera Inc., Bethesda, MD, USA
| | - Heather Burnett
- Evidence Synthesis, Modeling & Communication, Evidera Inc., Bethesda, MD, USA
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