“…Median overall incidence density of SARS-CoV-2 infection during the study period was 3.39 [2.89-3.96] per 1000 person-month (0.19 [0.08-0.36] during the third wave, 1.04 [0.77-1.37] during the fourth wave, and 2.17 [1.77-2.64] during the fifth wave). The incidence at 3 and 6 months of complete vaccination was 7 [5] , [6] , [7] , [8] , [9] , [10] and 12 [9–15] per 1000 person-month respectively. Figure 1 Flow-chart of the study.…”
“…Median overall incidence density of SARS-CoV-2 infection during the study period was 3.39 [2.89-3.96] per 1000 person-month (0.19 [0.08-0.36] during the third wave, 1.04 [0.77-1.37] during the fourth wave, and 2.17 [1.77-2.64] during the fifth wave). The incidence at 3 and 6 months of complete vaccination was 7 [5] , [6] , [7] , [8] , [9] , [10] and 12 [9–15] per 1000 person-month respectively. Figure 1 Flow-chart of the study.…”
“…COVID-19 represents an occupational risk for dentists [ 10 , 20 , 21 ]. Vaccination against COVID-19 significantly reduces morbidity and absenteeism among HCP [ 22 ]. However, in many settings, HCP have been hesitant to have a COVID-19 vaccine.…”
Our aim was to study attitudes toward vaccinations, full vaccination rates and susceptibility rates against vaccine-preventable diseases among students attending a University Dental School. A total of 134 students were studied. Full vaccination rates were as follows: 56.5% against measles and mumps, 70.6% against rubella, 32.3% against varicella, 44.1% against hepatitis A, 45.9% against hepatitis B, and 87.7% against COVID-19. In the past decade, 63.2% of students had received a booster shot against tetanus–diphtheria, 47.8% against pertussis, and 28.1% against poliomyelitis, while 29.4% of students had been vaccinated against influenza in the past year. Susceptibility rates were 40.4% for measles, 42.4% for mumps, 28.3% for rubella, 32.3% for varicella, 55.3% for hepatitis A, 54.1% for hepatitis B, 36.8% for tetanus–diphtheria, 52.2% for pertussis, and 71.9% for poliomyelitis. Overall, 123 (91.8%) students favored mandatory vaccinations, mainly for all dentists (88.4%), while 11.6% of students favored them only for dentists who provide care to high-risk patients. In conclusion, most dental students favored mandatory vaccinations, yet we found significant vaccination gaps and susceptibility rates against vaccine-preventable diseases. Vaccinations for dental students should be intensified. A national vaccination registry for healthcare personnel including dental students is urgently needed.
“…In randomized, placebo-controlled, phase 3 efficacy trials after vaccine rollout, both mRNA vaccines were efficient in inhibiting symptomatic and severe COVID-19 illness [14][15][16][17]. Furthermore, a recent study showed that full vaccination of HCP with mRNA vaccine was associated with 66.42% vaccine effectiveness against absenteeism [18]. In clinical trials, the vaccines had 52-95% efficacy for symptomatic disease 14 days later than the first dose and 95% efficacy 7 days later than the second dose [15,16].…”
The number of people vaccinated against COVID-19 increases worldwide every day; however, it is important to study the risk of breakthrough infections in vaccinated individuals at high risk of exposure such as healthcare personnel (HCP). A systematic literature review (SLR) applying the PRISMA declaration and the PECOS format using the following entry terms was used: “Health Personnel OR Healthcare Worker OR Healthcare Provider OR Healthcare Personnel AND breakthrough OR infection after vaccine*”. The research was carried out utilizing the following databases: SCOPUS, PubMed, Embase, and Web of Sciences. An overall very low incidence of post-vaccination breakthrough infections was found, ranging from 0.011 to 0.001 (per 100 individuals at risk). Our findings further support the published high effectiveness rates of mRNA vaccines in preventing SARS-CoV-2 infections among fully vaccinated HCP. Additional studies are needed to define the duration of the vaccine-induced protection among HCP.
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