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Ir J Med Sci ; 2022 Jan 10.
Article in English | MEDLINE | ID: covidwho-1616240


BACKGROUND: CoronaVac, an inactivated whole-virion vaccine against COVID-19, has been shown to be safe with acceptable antibody responses by various clinical trials. AIMS: The objective was to investigate the post-vaccination antibody levels of both symptomatic and asymptomatic healthcare workers with or without the diagnosis of COVID-19 in an emergency department (ED) of a hospital serving as a pandemic hospital. METHODS: This single-centred, prospective study was conducted on 86 participants who were working as nurse or doctor in the ED. The volunteers were older than 18 years and either positive or negative for either computed tomography (CT), real-time reverse transcription polymerase chain reaction (qRT-PCR), or both. Thirty days after the second dose of CoronaVac (3 µg), the antibody levels were chemiluminescent microparticle immunoassay. RESULTS: Mean age of all participants were 33.1 ± 9.1 years. The antibody levels in the qRT-PCR( +) and CT( +) groups were significantly higher than the qRT-PCR( -) and CT( -) groups, respectively (p < 0.05). In the CT( +)/qRT-PCR( +) group, the antibody level was significantly higher than the CT( -)/qRT-PCR( -) and CT( -)/qRT-PCR( +) or CT( +)/qRT-PCR( -) group (p < 0.05). On the other hand, antibody levels in the hospitalized group were significantly higher than in the non-hospitalized group (p < 0.05). A significant positive correlation was observed between the time elapsed after vaccination and antibody levels of the participants (r = 0.343; p = 0.000). CONCLUSION: In conclusion, antibody responses of recovered patients COVID-19 diagnosed by both CT and qRT-PCR were much robust than the patients diagnosed by either one of the techniques or undiagnosed/disease-free participants suggesting that severity of the disease likely contributes to the antibody responses after vaccination with CoronaVac.

J Infect Public Health ; 14(10): 1334-1339, 2021 Oct.
Article in English | MEDLINE | ID: covidwho-1272543


BACKGROUND: Accidental exposure to percutaneous needle stick and sharp injuries (NSSIs) and blood and other body fluids is the unintended contact with risky medical instruments or patient secretions during a medical intervention. During the COVID-19 pandemic, the significance of occupational injuries in healthcare professionals was revealed once again. To assess the occupational injuries, we compared rates, distribution and type of exposure to blood and body fluids and NSSIs of health care workers for 2019 (pre-pandemic era) and 2020 (pandemic era) years, respectively. MATERIAL AND METHODS: Our study included data collected by the 'Hospital Infection Control Committee' for the years 2019-2020. Data collected using the active surveillance method were analyzed retrospectively. RESULTS: During 2019 (pre-pandemic period) and 2020 (pandemic period), 112 (27.65%0) and 82 (21.4%0) NSSIs reported, respectively. Of the exposed HCWs in 2019 (pre-pandemic period), 16.8%0 (14) were doctor, 53.6%0 (60) were nurse and 47.4%0 (14) were intern doctors. In the 2020 (pandemic period), NSSIs were observed most frequently in nurses and cleaning staff, 50.24%0 and 33.64%0, respectively. Concerning the total percentage of exposure to blood and other body fluids, a slight increase was revealed from 1.48%0 to 2.62%0 in 2019 and 2020, respectively. A significant decrease in exposure rate was reported among the doctors between the pre-pandemic and pandemic era; 3.6%0 and 1.19%0 at 2019 and 2020, respectively. A significant increase in exposure rate was reported among the nurses between pre-pandemic and pandemic era; 0.8%0 and 6.89%0, respectively. CONCLUSION: In conclusion, the exposure to NSSIs during the pandemic period decreased; however, there was no severe difference at pre-pandemic and pandemic periods concerning exposure to blood and body fluids. Well-designed training and awareness programs can be effective in preventing exposure to NSSIs and blood and other body fluids and exposure to respiratory acquired viruses.

COVID-19 , Needlestick Injuries , Occupational Exposure , Cross-Sectional Studies , Health Personnel , Humans , Needlestick Injuries/epidemiology , Pandemics , Retrospective Studies , SARS-CoV-2