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Karmacharya A, Rai K, Siwakoti S, Khanal B, Bhattarai NR. COVID-19 breakthrough infections in vaccinated individuals at BPKIHS, Nepal. BMC Infect Dis 2024; 24:1003. [PMID: 39300352 DOI: 10.1186/s12879-024-09902-z] [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: 12/24/2023] [Accepted: 09/09/2024] [Indexed: 09/22/2024] Open
Abstract
BACKGROUND Although there have been reports of COVID-19 breakthrough infections in vaccinated individuals, the vaccines have demonstrated a high efficacy in preventing severe illness and death. Nepal has reported fewer studies of COVID-19 breakthrough infections. Hence, this study has objective to assess the prevalence, and to describe clinical characteristics of severe acute respiratory syndrome coronavirus 2 (SARS-CoV2) breakthrough infection. METHODS This descriptive study was conducted from January to December 2022. The study enrolled 200 individuals who had received the recommended doses of the COVID-19 vaccine and they were RT-PCR positive diagnosed with vaccine breakthrough infections after 14 days of completing the vaccination course. The patient's demographic and clinical profiles, as well as their outcomes in terms of severity, length of hospital stay, and mortality were recorded. RESULTS The prevalence of SARS-CoV2 infection was 6.3% (547/8682). Among fully vaccinated personnel, the prevalence of breakthrough infections was 6.2% (200/3175). This study found the Omicron variants in respondents. The mean age of the patients was 38.28 years, and 41.5% (83/200) of the breakthrough cases were healthcare workers. The mean time gap between the second dose of vaccination and a positive RT-PCR test was 354.68 days. Of the 200 breakthrough cases, 89% (178) had mild symptoms, 9% (17) had moderate symptoms requiring hospitalization, and 2% (4) were severe cases that required intensive care facility. Among the severe cases, 3 out 4 were above 60 years old. Furthermore, the patients greater than 60 years had longer hospital stays (p < 0.0001) however no deaths were recorded. CONCLUSION Fully vaccinated individuals can experience COVID-19 breakthrough infections and the majority of cases present with mild symptoms. Elderly patients have a higher likelihood of severe disease and longer hospital stay compared to younger patients. The results of this study emphasize the importance of vaccination in mitigating the severity of the disease.
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Affiliation(s)
- Abhishek Karmacharya
- Department of Microbiology, B. P. Koirala Institute of Health Sciences, Dharan, Nepal.
| | - Keshav Rai
- Department of Microbiology, B. P. Koirala Institute of Health Sciences, Dharan, Nepal
| | - Shraddha Siwakoti
- Department of Microbiology, B. P. Koirala Institute of Health Sciences, Dharan, Nepal
| | - Basudha Khanal
- Department of Microbiology, B. P. Koirala Institute of Health Sciences, Dharan, Nepal
| | - Narayan Raj Bhattarai
- Department of Microbiology, B. P. Koirala Institute of Health Sciences, Dharan, Nepal
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Baziboroun M, Hosseinzadeh S, Gholinia H, Sadeghi F, Yahyapour Y. COVID-19 infection after vaccination. CASPIAN JOURNAL OF INTERNAL MEDICINE 2024; 15:644-650. [PMID: 39359433 PMCID: PMC11444105 DOI: 10.22088/cjim.15.4.644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 11/18/2023] [Indexed: 10/04/2024]
Abstract
Background Although vaccination is the most effective and specific approach for prevention of infectious diseases, but in a small percentage of vaccinated person's breakthrough infections can occur. This study aimed to determine the effectiveness of different common coronavirus vaccines in this area. Methods 109 COVID-19 vaccinated patients were enrolled, with different types of vaccines (Sinopharm, AstraZeneca, Sputnic, Bharath, CovIran Barkat and Pasto-CoV) and time of administration in 2021 in Babol, Iran. Patients after 14 days of administration of the final dose of corona vaccines with positive COVID-19 RT-PCR test entered to study. Patients' data such as RT-PCR, type of vaccine, age, sex and outcome were collected using electronic medical records. Results 47 patients were not fully vaccinated, 62 had two vaccine doses and 51 were fully vaccinated and considered to a breakthrough infection. Although, most of the patients with SARS-CoV-2 infection were either mild (n=18 [16.56%]), or moderate (n=86 [78.9%]), 5 (4.6%) patients had severe or critical illness, of whom 3 admitted in intensive care unit, 3 intubated, and 4 died. The average age of the participants with COVID-19 infections was 61.23 ± 19.91 years. Conclusion Based on our results, the COVID-19 breakthrough occurring with two doses of current vaccines were mild and moderate.
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Affiliation(s)
- Mana Baziboroun
- Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Sayareh Hosseinzadeh
- Part of Infectious Control, Ayatollah Rouhani Hospital, Babol University of Medical Sciences, Babol, Iran
| | - Hemmat Gholinia
- Social Determinants of Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Farzin Sadeghi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Yousef Yahyapour
- Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
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Oberste M, Asenova T, Ernst A, Shah-Hosseini K, Schnörch N, Buess M, Rosenberger KD, Kossow A, Dewald F, Neuhann F, Hellmich M. Results of the Cologne Corona Surveillance (CoCoS) project- a cross-sectional study: survey data on risk factors of SARS-CoV-2 infection, and moderate-to-severe course in primarily immunized adults. BMC Public Health 2024; 24:548. [PMID: 38383381 PMCID: PMC10882740 DOI: 10.1186/s12889-024-17958-4] [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: 03/31/2023] [Accepted: 02/01/2024] [Indexed: 02/23/2024] Open
Abstract
BACKGROUND Amidst the COVID-19 pandemic, vaccination has been a crucial strategy for mitigating transmission and disease severity. However, vaccine-effectiveness may be influenced by various factors, including booster vaccination, as well as personal factors such as age, sex, BMI, smoking, and comorbidities. To investigate the potential effects of these factors on SARS-CoV-2 infection and disease severity, we analyzed data from the third round of the Cologne Corona Surveillance (CoCoS) project, a large cross-sectional survey. METHODS The study was conducted mid-February to mid-March 2022 in Cologne, Germany. A random sample of 10,000 residents aged 18 years and older were invited to participate in an online survey. Information on participants' demographics (age, sex), SARS-CoV-2 infections, vaccination status, smoking, and preexisting medical conditions were collected. The outcomes of the study were: (1) the occurrence of SARS-CoV-2 infection despite vaccination (breakthrough infection) and (2) the occurrence of moderate-to-severe disease as a result of a breakthrough infection. Cox proportional-hazards regression was used to investigate possible associations between the presence/absence of booster vaccination, personal factors and the occurrence of SARS-CoV-2 infection. Associations with moderate-to-severe infection were analyzed using the Fine and Gray subdistribution hazard model. RESULTS A sample of 2,991 residents responded to the questionnaire. A total of 2,623 primary immunized participants were included in the analysis of breakthrough infection and 2,618 in the analysis of SARS-CoV-2 infection severity after exclusions due to incomplete data. The multivariable results show that booster vaccination (HR = 0.613, 95%CI 0.415-0.823) and older age (HR = 0.974, 95%CI 0.966-0.981) were associated with a reduced hazard of breakthrough infection. Regarding the severity of breakthrough infection, older age was associated with a lower risk of moderate-to-severe breakthrough infection (HR = 0.962, 95%CI0.949-0.977). Female sex (HR = 2.570, 95%CI1.435-4.603), smoking (HR = 1.965, 95%CI1.147-3.367) and the presence of chronic lung disease (HR = 2.826, 95%CI1.465-5.450) were associated with an increased hazard of moderate-to-severe breakthrough infection. CONCLUSION The results provide a first indication of which factors may be associated with SARS-CoV-2 breakthrough infection and moderate-to-severe course of infection despite vaccination. However, the retrospective nature of the study and risk of bias in the reporting of breakthrough infection severity limit the strength of the results. TRIAL REGISTRATION DRKS.de, German Clinical Trials Register (DRKS), Identifier: DRKS00024046, Registered on 25 February 2021.
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Affiliation(s)
- Max Oberste
- Institute of Medical Statistics and Computational Biology, Medical Faculty and University Hospital of Cologne, University of Cologne, Robert-Koch-Straße 10, 50931, Cologne, Germany
| | - Teodora Asenova
- Institute of Medical Statistics and Computational Biology, Medical Faculty and University Hospital of Cologne, University of Cologne, Robert-Koch-Straße 10, 50931, Cologne, Germany
| | - Angela Ernst
- Institute of Medical Statistics and Computational Biology, Medical Faculty and University Hospital of Cologne, University of Cologne, Robert-Koch-Straße 10, 50931, Cologne, Germany
| | - Kija Shah-Hosseini
- Institute of Medical Statistics and Computational Biology, Medical Faculty and University Hospital of Cologne, University of Cologne, Robert-Koch-Straße 10, 50931, Cologne, Germany
| | - Nadja Schnörch
- Institute of Medical Statistics and Computational Biology, Medical Faculty and University Hospital of Cologne, University of Cologne, Robert-Koch-Straße 10, 50931, Cologne, Germany
| | | | - Kerstin Daniela Rosenberger
- Institute of Medical Statistics and Computational Biology, Medical Faculty and University Hospital of Cologne, University of Cologne, Robert-Koch-Straße 10, 50931, Cologne, Germany
| | - Annelene Kossow
- Cologne Health Authority, Cologne, Germany
- Institute of Hygiene, University Hospital of Muenster, University Muenster, Robert-Koch-Straße 49, 48149, Muenster, Germany
| | - Felix Dewald
- Institute of Virology, Medical Faculty and University Hospital of Cologne, University of Cologne, Fürst-Pückler-Straße 56, 50935, Cologne, Germany
| | - Florian Neuhann
- Cologne Health Authority, Cologne, Germany
- Heidelberg Institute of Global Health, University Heidelberg, Heidelberg, Germany
- School of Medicine and Clinical Sciences, Levy Mwanawasa Medical University, Lusaka, Zambia
| | - Martin Hellmich
- Institute of Medical Statistics and Computational Biology, Medical Faculty and University Hospital of Cologne, University of Cologne, Robert-Koch-Straße 10, 50931, Cologne, Germany.
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Tani N, Ikematsu H, Goto T, Kondo S, Gondo K, Fujiyoshi N, Minami J, Harada Y, Nagano S, Horiuchi T, Kuwano H, Akashi K, Shimono N, Chong Y. Correlation between specific antibody response to wild-type BNT162b2 booster and the risk of breakthrough infection with omicron variants: Impact of household exposure in hospital healthcare workers. Vaccine 2023; 41:6672-6678. [PMID: 37775465 DOI: 10.1016/j.vaccine.2023.09.051] [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: 04/11/2023] [Revised: 09/19/2023] [Accepted: 09/23/2023] [Indexed: 10/01/2023]
Abstract
BACKGROUND The emergence of omicron variants exhibiting antigenic changes has led to an increase in breakthrough infection among individuals with a wild-type SARS-CoV-2 vaccine booster. The correlation between post-booster spike-specific antibodies and omicron infection risk remains unclear. METHODS This prospective cohort study included SARS-CoV-2-naive healthcare workers with three-dose BNT162b2. Post-booster spike-specific IgG and interferon-γ levels were measured. Breakthrough infection was documented during a 10-month omicron-predominant period. Household and healthcare contacts were followed to identify subsequent infections. The IgG titers were additionally measured at the end of follow-up, and the titers at exposure were estimated from the two-point titers. RESULTS Of 333 participants, 89 developed infection, of whom 37 (41.6 %) were household contacts. Kaplan-Meier curves indicated that higher IgG titers were significantly correlated with lower cumulative infection incidence (p = 0.029), whereas the interferon-γ levels were not (p = 0.926). Multivariate Cox analysis showed that increasing IgG titers were associated with a reduced hazard ratio (HR) of 0.26 (95% CI, 0.12-0.55). Household exposure posed a greater infection risk than healthcare exposure (HRs, 11.24 [6.88-18.40] vs. 2.82 [1.37-5.44]). The difference in geometric mean IgG titers of infected and uninfected participants was significant among household contacts (20,244 AU/mL vs. 13,842 AU/mL, p = 0.031). Estimation of IgG titers at exposure showed a significantly higher infection incidence in those exposed with titers of <3,000 AU/mL than in those with higher titers (79.2 % vs. 32.3 %, p < 0.001). CONCLUSIONS Spike-specific antibodies induced by a wild-type SARS-CoV-2 vaccine booster are suggested to be effective in protecting against omicron infection. Household exposure would be a significant source of infection for hospital healthcare workers.
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Affiliation(s)
- Naoki Tani
- Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, Fukuoka 812-8582, Japan
| | | | - Takeyuki Goto
- Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, Fukuoka 812-8582, Japan
| | - Satoko Kondo
- Department of Nursing, Fukuoka City Hospital, Fukuoka 812-0046, Japan
| | - Kei Gondo
- Clinical Laboratory, Fukuoka City Hospital, Fukuoka 812-0046, Japan
| | - Naoko Fujiyoshi
- Department of Infectious Diseases, Fukuoka City Hospital, Fukuoka 812-0046, Japan
| | - Junya Minami
- Department of Infectious Diseases, Fukuoka City Hospital, Fukuoka 812-0046, Japan
| | - Yukiko Harada
- Department of Infectious Diseases, Fukuoka City Hospital, Fukuoka 812-0046, Japan
| | - Sukehisa Nagano
- Department of Neurology, Fukuoka City Hospital, Fukuoka 812-0046, Japan
| | | | | | - Koichi Akashi
- Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, Fukuoka 812-8582, Japan
| | - Nobuyuki Shimono
- Center for the Study of Global Infection, Kyushu University Hospital, 812-8582 Fukuoka, Japan
| | - Yong Chong
- Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, Fukuoka 812-8582, Japan.
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Dash NR, Barqawi HJ, Obaideen AA, Al Chame HQ, Samara KA, Qadri R, Eldesouki S. COVID-19 Breakthrough Infection Among Vaccinated Population in the United Arab Emirates. J Epidemiol Glob Health 2023; 13:67-90. [PMID: 36795274 PMCID: PMC9933808 DOI: 10.1007/s44197-023-00090-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 01/12/2023] [Indexed: 02/17/2023] Open
Abstract
BACKGROUND Despite significant efforts to contain the Coronavirus Disease 2019 (COVID-19) pandemic through mass vaccination, numerous nations throughout the world have recorded breakout infections. The incidence and severity of COVID-19 breakthrough infections in the United Arab Emirates (UAE) remain unknown despite extensive COVID-19 vaccine coverage. The goal of this research is to establish the characteristics of COVID-19 breakthrough infections in the UAE's vaccinated population. METHODS Between February and March 2022, we conducted a descriptive cross-sectional study in the UAE with 1533 participants to examine the characteristics of COVID-19 breakthrough infection among the vaccinated population. RESULTS The vaccination coverage was 97.97%, and the COVID-19 breakthrough infection rate was 32.1%, requiring hospitalization in 7.7% of cases. The bulk of the 492 COVID-19 breakthrough infections reported was among young adults (67%), with the majority experiencing mild to moderate symptoms (70.7%) or remaining asymptomatic (21.5%). CONCLUSIONS COVID-19 breakthrough infection were reported in younger age, male sex, non-healthcare professions, vaccination with inactivated whole virus vaccine (Sinopharm), and not receiving a booster dose. Information on breakthrough infection in the UAE might influence public health decisions and motivate measures such as providing additional booster doses of the vaccines to the people.
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Affiliation(s)
- Nihar Ranjan Dash
- Clinical Sciences Department, College of Medicine, University of Sharjah, 27272, Sharjah, United Arab Emirates.
| | - Hiba Jawdat Barqawi
- Clinical Sciences Department, College of Medicine, University of Sharjah, 27272, Sharjah, United Arab Emirates
| | - Anas A Obaideen
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | | | - Kamel A Samara
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Rama Qadri
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Salma Eldesouki
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
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