scholarly journals Breakthrough COVID-19 infection rate with Indian strain in Single-center Healthcare Workers: A real world data.

Author(s):  
RAVINDRA SABNIS ◽  
Abhijit Patil ◽  
Nitiraj Shete ◽  
Arun Kumar Rastogi

Abstract: Introduction: It is observed that many healthcare workers got COVID19 infection despite of completing both doses of Covishield vaccine. This study aimed to find real incidence of vaccine breakthrough infection. Material and methods: All hospital employees, who were fully vaccinated were included in study. Details about their vaccine side effects, infection prior to vaccination, post vaccination infection, severity of infection, hospital and ICU admission were noted. Results: None encountered any significant side effects of vaccine. Of the 461 participants, 86 (18.65%) got infection average 38 days (range 14 to 70days) after vaccination. As per the NIH classification, out of 86, disease was mild in 69(80.2%), moderate in 10(11.62%), severe in 6(6.97%) and critical in 1(1.16%). Of these, 10(11.62%) required hospital admission. Of these 10, 2 were shifted to ICU. Of the 2, One recovered while one died. Thus mortality was 1/86(1.6%). Conclusion: Breakthrough infection rate in health care workers was 18.65%. Moderate, severe or critical disease occurred in 19.7% participants even after two doses of vaccine. Mortality due to disease cannot be completely obviated due to vaccine. The vaccine was safe without any significant adverse events.

2021 ◽  
Vol 14 (9) ◽  
pp. 873
Author(s):  
Abanoub Riad ◽  
Barbora Hocková ◽  
Lucia Kantorová ◽  
Rastislav Slávik ◽  
Lucia Spurná ◽  
...  

mRNA-based COVID-19 vaccines such as BNT162b2 have recently been a target of anti-vaccination campaigns due to their novelty in the healthcare industry; nevertheless, these vaccines have exhibited excellent results in terms of efficacy and safety. As a consequence, they acquired the first approvals from drug regulators and were deployed at a large scale among priority groups, including healthcare workers. This phase IV study was designed as a nationwide cross-sectional survey to evaluate the post-vaccination side effects among healthcare workers in Slovakia. The study used a validated self-administered questionnaire that inquired about participants’ demographic information, medical anamneses, COVID-19-related anamnesis, and local, systemic, oral, and skin-related side effects following receiving the BNT162b2 vaccine. A total of 522 participants were included in this study, of whom 77% were females, 55.7% were aged between 31 and 54 years, and 41.6% were from Banska Bystrica. Most of the participants (91.6%) reported at least one side effect. Injection site pain (85.2%) was the most common local side effect, while fatigue (54.2%), headache (34.3%), muscle pain (28.4%), and chills (26.4%) were the most common systemic side effects. The reported side effects were of a mild nature (99.6%) that did not require medical attention and a short duration, as most of them (90.4%) were resolved within three days. Females and young adults were more likely to report post-vaccination side effects; such a finding is also consistent with what was previously reported by other phase IV studies worldwide. The role of chronic illnesses and medical treatments in post-vaccination side effect incidence and intensity requires further robust investigation among large population groups.


2021 ◽  
Vol 10 (10) ◽  
pp. 691
Author(s):  
Hui Ren ◽  
Peixiao Wang ◽  
Wei Guo ◽  
Xinyan Zhu

The outbreak of COVID-19 has constantly exposed health care workers (HCWs) around the world to a high risk of infection. To more accurately discover the infection differences among high-risk occupations and institutions, Hubei Province was taken as an example to explore the spatiotemporal characteristics of HCWs at different scales by employing the chi-square test and fitting distribution. The results indicate (1) the units around the epicenter of the epidemic present lognormal distribution, and the periphery is Poisson distribution. There is a clear dividing line between lognormal and Poisson distribution in terms of the number of HCWs infections. (2) The infection rates of different types of HCWs at multiple geospatial scales are significantly different, caused by the spatial heterogeneity of the number of HCWs. (3) With the increase of HCWs infection rate, the infection difference among various HCWs also gradually increases and the infection difference becomes more evident on a larger scale. The analysis of the multi-scale infection rate and statistical distribution characteristics of HCWs can help government departments rationally allocate the number of HCWs and personal protective equipment to achieve distribution on demand, thereby reducing the mental and physical pressure and infection rate of HCWs.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Farhang Babamahmoodi ◽  
Majid Saeedi ◽  
Reza Alizadeh-Navaei ◽  
Akbar Hedayatizadeh-Omran ◽  
Seyed Abbas Mousavi ◽  
...  

AbstractThe Sputnik V is a COVID- 19 vaccine developed by the Gamalia institute of epidemiology and microbiology and released on August 11, 2020. We provided independent evidence on side effects and immunogenicity following the administration of the Sputnik V COVID-19 in Iran. In this observational study, the healthcare workers who were vaccinated with the Sputnik V COVID-19 vaccine within February and April 2021 were evaluated. Among a total of 13,435 vaccinated healthcare workers, we received 3236 self-declaration reports of Sputnik V associated adverse events with the mean age 39.32 ± 10.19 years old which 38.8% were men and 61.2% were women. Totally 68.8% of females versus 66.2% of males reported side effects after receiving the first dose and 31.2% of females versus 33.8% of males reported side effects after the second dose of vaccine. The most common side effect was a pain in the injection site (56.9%), fatigue (50.9%), body pain (43.9%), headache (35.7%), fever (32.9%), joint pain (30.3%), chilling (29.8%) and drowsiness (20.3%). Side effects of the vaccine were significantly more frequent in females and younger individuals. Among a total of 238 participants, more than 90% after the first and second dose of vaccine had a detectable level of SARS-CoV-2 RBD antibody and SARS-CoV-2 neutralizing antibody. Although the overall rate of adverse effects was higher than the interim results from randomized controlled trials, our findings support the manufacturer’s reports about the high humoral immunogenicity of vaccine against COVID-19.


2010 ◽  
Vol 4 (1) ◽  
pp. 47-54 ◽  
Author(s):  
Cynthia D. Santos ◽  
Robert B. Bristow ◽  
Jaclyn V. Vorenkamp

ABSTRACTObjectives: To identify health care workers most at risk for H1N1 infection before vaccination and compare health outcomes after vaccination.Methods: The indices used to gauge employee health were laboratory-confirmed H1N1 data, laboratory-confirmed influenza A data, and employee sick hours records. In phase 1 of this 2-phase study, absenteeism records for 6,093 hospital employees before vaccine administration were analyzed according to department and employee position during the spring 2009 H1N1 pandemic.Results: Records of 123 confirmed reports of laboratory-confirmed influenza A or novel H1N1 infections in hospital employees were also analyzed. Two thirds of the H1N1 cases occurred during June (infection rates in parentheses): 34 in physicians and medical personnel (6.7%), 36 in nurses and clinical technicians (2.2%), 39 in Administrative & Support Personnel (infection rate = 1.2%), 3 in Social Workers & Counselors (infection rate = 1.0%), 8 in Housekeeping & Food Services (infection rate = 2.7%), and 3 in Security & Transportation (infection rate=3.9%). When analyzed according to department, the adult emergency department (infection rate = 28.8%) and the pediatric emergency department (infection rate = 25.0%) had the highest infection rates per department.Conclusions: Of the reported cases of H1N1 in health care workers, 49% occurred in a population that constitutes less than 20% of the total population studied. Physicians and medical personnel had a higher infection rate than other employee positions, whereas ED personnel had the highest infection rate.(Disaster Med Public Health Preparedness. 2010;4:47-54)


2020 ◽  
Author(s):  
Silky Dhamija ◽  
Yayati Joshi ◽  
Amar Nandhakumar

Abstract Background Various modalities are under study for prevention and treatment of novel coronavirus. One such modality is use of Hydroxychloroquine/Choloroquine. The objective of survey was to understand the awareness and impact of HCQ/CQ prophylaxis among the health care workers (HCWs) including surgeons and anaesthetists.Methods A web-based, cross-sectional survey was conducted for HCWs globally. Participation was voluntary and confidentiality was maintained by making participants' information anonymous. The questionnaire consisted of 28 items. Data were tabulated in excel, and descriptive statistics were performed. Results Survey was taken by 344 HCWs from all over the world. 98% participants heard about the use of HCQ/CQ prophylaxis against COVID 19 infection. 301 HCWs knew about the side effects of HCQ/CQ. 54 1% participants agree there is not adequate research done. 122 participants took HCQ/CQ prophylaxis. Out of 29 5% participants who received the medicine from hospital under hospital protocol, 66 7% were given medication without baseline investigations and 30 5% HCWs were not even briefed about the drug and its side effects by the hospitals. 36 2% participants developed side effects. 8 7% HCWs were tested for COVID19 out of 344 participants.Conclusion The drug taken by HCWs was without adequate evidence, prior investigations, supervision and follow-up. Most of the participants self prescribed the drug. No separate guidelines were stated for people who had co-morbid conditions. Hospitals neither conducted baseline investigations and nor briefed HCWs about HCQ/CQ. These are some serious concerns we are looking into as who will be answerable in case of adverse events.


Vaccines ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 502
Author(s):  
Izabela Jęśkowiak ◽  
Benita Wiatrak ◽  
Patrycja Grosman-Dziewiszek ◽  
Adam Szeląg

The pandemic of COVID-19 might be limited by vaccination. Society should be vaccinated to prevent the spread of coronavirus disease 2019 (COVID-19) and to protect persons who are at high risk for complications. In Poland, the National Vaccination Program has been introduced, which is a strategy for planning activities to ensure safe and effective vaccinations among Polish citizens. It includes not only the purchase of an appropriate number of vaccines, their distribution but also monitoring of the course and effectiveness of vaccination and the safety of Poles. The national COVID-19 immunization program has been divided into four stages. Stage 0 covers the healthcare workers to be vaccinated first, as they are most at risk of being infected with the coronavirus. The study aims to prove the thesis that GIS statistical data on the incidence of COVID-19 post-vaccination reactions should be verified, as patients do not report their occurrence through the procedure indicated by GIS. In March 2021, an anonymous questionnaire survey was conducted using an electronic questionnaire among persons belonging to group zero of the National Vaccination Program. The survey consisted of 19 short questions concerning, inter alia, getting COVID-19, post-vaccination reactions after receiving the first and second doses of the COVID-19 vaccine, and motivation to proceed with vaccination. A total of 1678 complete responses were received. It has been shown that only a small number of post-vaccination reactions are reported to the Sanitary Inspection, which makes GIS statistics on the incidence of post-vaccination reactions in COVID-19 unreliable. In addition, having earlier suffered from COVID-19 had an impact on the occurrence of more severe side effects after the first dose of the COVID-19 vaccine.


2021 ◽  
pp. 31-34
Author(s):  
C.S. Anand ◽  
Hafeezunissa Rehman ◽  
K. Krishna Kumar ◽  
Brham Prakash ◽  
Subodh Kumar ◽  
...  

Healthcare workers (HCWs) are highly exposed to SARS-CoV-2 infection. HCWs are also likely source of infection of their family members .COVID-19 Vaccination programs started during December 2020 in several countries and prioritized healthcare workers (HCWs).The vaccination campaign coincided with the second surge of COVID cases in Western part of India.This study assess the prevalence of COVID19 infection and disease severity in vaccinated HCWs. Prevalence of SARS-CoV-2 cases was 6.3% of vaccinated HCWs. Most infection cases occurred within two weeks of the first vaccine dose. Out of total HCWs 87.4% were mild, 11.1% were moderate, and 1.5% were severe cases.This study stresses on early identification of asymptomatic carriers in vaccinated individuals.Even vaccinated HCWs might spread the infection leading to hospital outbreaks.With the emergence of newer strains of Covid 19 and amid the rising cases of Delta variant across the globe,adequate infection control practices like masking,social distancing,appropriate PPE and hand sanitization and vaccination are mandatory.However,disease severity is milder post vaccination.It is important to distinguish symptoms of side effects post vaccination from COVID infection even in vaccinated HCW in pandemic.


2021 ◽  
Author(s):  
Masahiro Kitabatake ◽  
Noriko Ouji-Sageshima ◽  
Shota Sonobe ◽  
Ryutaro Furukawa ◽  
Makiko Konda ◽  
...  

AbstractSince February 2021, health care workers in Japan have been preferentially vaccinated with a messenger RNA vaccine (BNT162b2/Pfizer) against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). While many studies have confirmed that this vaccine is highly effective in reducing hospitalizations and deaths from coronavirus disease 2019 (COVID-19), antibody titers tend to decline at 3 months, leading to a risk of breakthrough infections. Thus, information is needed to support decision making regarding the third vaccination. In this study, we investigated transition of the anti-SARS-CoV-2 receptor-binding domain (RBD) IgG and neutralizing antibody titers of 41 vaccinated Japanese healthcare workers. Samples were collected seven times starting 1 week before vaccination until 6 months post-vaccination. Anti-SARS-CoV-2 RBD IgG levels peaked at 7 days after the booster, then declined over time and decreased to <10% at 6 months after the booster. Workers with low anti-SARS-CoV-2 RBD IgG levels also had low neutralizing antibody titers. These data support the active use of boosters for healthcare workers, especially for those with low anti-SARS-CoV-2 RBD IgG levels.


Author(s):  
Oladayo A. Oyebanji ◽  
Brigid Wilson ◽  
Debbie Keresztesy ◽  
Lenore Carias ◽  
Dennis Wilk ◽  
...  

Abstract Background The BNT162b2 SARS-CoV-2 mRNA vaccination has mitigated the burden of COVID-19 among residents of long-term care facilities considerably, despite being excluded from the vaccine trials. Data on reactogenicity (vaccine side effects) in this population are limited. Aims To assess reactogenicity among nursing home (NH) residents. To provide a plausible proxy for predicting vaccine response among this population. Methods We enrolled and sampled NH residents and community-dwelling healthcare workers who received the BNT162b2 mRNA vaccine, to assess local or systemic reactogenicity and antibody levels (immunogenicity). Results NH residents reported reactions at a much lower frequency and lesser severity than the community-dwelling healthcare workers. These reactions were mild and transient with all subjects experiencing more local than systemic reactions. Based on our reactogenicity and immunogenicity data, we developed a linear regression model predicting log-transformed anti-spike, anti-receptor-binding domain (RBD), and neutralizing titers, with a dichotomous variable indicating the presence or absence of reported reactions which revealed a statistically significant effect, with estimated shifts in log-transformed titers ranging from 0.32 to 0.37 (all p < 0.01) indicating greater immunogenicity in subjects with one or more reported reactions of varying severity. Discussion With a significantly lower incidence of post-vaccination reactions among NH residents as reported in this study, the BNT162b2 mRNA vaccine appears to be well-tolerated among this vulnerable population. If validated in larger populations, absence of reactogenicity could help guide clinicians in prioritizing vaccine boosters. Conclusions Reactogenicity is significantly mild among nursing home residents and overall, subjects who reported post-vaccination reactions developed higher antibody titers.


2021 ◽  
Author(s):  
Helene Jeulin ◽  
Denis Craus ◽  
Carlos Labat ◽  
Athanase Benetos

The current consensus is that 2 doses of mRNA vaccines against SARS-CoV-2 are needed for people without COVID-19 history, while for those who had suffered COVID-19, a single dose may be enough to achieve high levels of immunization. This consensus has been based on results obtained in middle-aged populations, whereas only few data exist for the oldest and most frail adults such as nursing home residents (NH-Res) that is, the population most vulnerable to develop severe forms of COVID-19. In this study, we studied the anti-SARS-CoV-2 IgG(S) level of NH-Res and healthcare workers (HCWs) with or without a history of COVID-19 infection taking into account the time since immunization (COVID-19 and/or vaccination). 654 subjects were analyzed: 397 NH-Res (median age 88, IQR 82-93 years, 75% women) and 257 Health Care Workers (HCWs, median 46, IQR 38-54 years, 81% women). NH-Res and HCWs were classified in one of the following 3 groups: No-COVID history and 2 vaccine shots (COV-NO/2VACC); Yes-COVID history and 1 (COV-YES/1VACC) or 2 (COV-YES/2VACC) vaccine injections. The time-related decrease in IgG (S) in subjects without COVID-19 history, SARS-COV-2 serology would be negative in HCWs approximately 220 days and in residents 180 days after vaccination. This time-related decrease was much slower in those with history of COVID. NH-Res belonging into the COV-NO/2VACC and the COV-YES/1VACC groups showed lower IgG (S) levels than the same groups of HCWs (for both groups, p<0.0001), whereas in the group COV-YES/2VACC, IgG (S) levels were similar in NH-Res and HCWs (p=0.88). These results remained unchanged after adjustment for age and duration since immunization. Thus, in NH-Res, 2 vaccine shots were associated with a more pronounced immune response, whereas in HCWs, 1 or 2 vaccine shots in patients with COVID-19 history did make any difference. These results indicate significant differences in mRNA vaccination between NH-Res and middle-aged controls, and could contribute to the specification of vaccine policy in this very old, frail population.


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