Background: Infection by SARS-CoV-2 has been associated with multiple symptoms; however, still, little is known about persistent symptoms and their probable association with the risk of developing pulmonary fibrosis in patients post-COVID-19. Methods: A longitudinal prospective study on health workers infected by SARS-CoV-2 was conducted. In this work, signs and symptoms were recorded of 149 health workers with a positive PCR test for SARS-CoV-2 at the beginning of the diagnosis, during the active infection, and during post-COVID-19 follow-up. The McNemar chi-square test was used to compare the proportions and percentages of symptoms between the baseline and each follow-up period. Results: The signs and symptoms after follow-up were cardiorespiratory, neurological, and inflammatory. Gastrointestinal symptoms were unusual at the disease onset, but unexpectedly, their frequency was higher in the post-infection stage. The multivariate analysis showed that pneumonia (HR 2.4, IC95%: 1.5–3.8, p < 0.001) and positive PCR tests still after four weeks (HR 5.3, IC95%: 2.3-12.3, p < 0.001) were factors associated with the diagnosis of post-COVID-19 pulmonary fibrosis in this study group. Conclusions: Our results showed that pneumonia and virus infection persistence were risk factors for developing pulmonary fibrosis post-COVID-19, after months of initial infection.
Objetivo. Reportar las manifestaciones orales más comunes asociadas a COVID-19 así como si estas persisten en un período de 3 meses. Métodos. Se realizó un estudio longitudinal, descriptivo, evaluando a 149 individuos positivos por reacción en cadena de la polimerasa (PCR) para SARS-CoV-2 a los cuales se les realizó un estudio inicial y un control 3 meses después. Resultados. El 65% de los participantes reportó alguna manifestación en cavidad bucal y el 24% alguna secuela. Dentro de estos síntomas y secuelas bucales observados, la de mayor frecuencia fue la disgeusia la cual se encontró en 51% de los pacientes seguida por xerostomía 27%, ganglios o glándulas inflamadas (17%). Dichas manifestaciones disminuyeron de forma importante en el seguimiento, sin embargo, prevalecieron en algunos pacientes. Conclusiones. La disgeusia es la manifestación oral de mayor frecuencia en este estudio y se presentó entre las cinco manifestaciones generales más comunes.
The SARS-CoV-2 pandemic has confirmed the apocalyptic predictions that virologists have been making for several decades. The challenge the world is facing is that of trying to find a possible treatment, and a viable and expedient option for addressing this challenge is the repurposing of drugs. However, in some cases, although these drugs are approved for use in humans, the mechanisms of action involved are unknown. In this sense, to justify its therapeutic application to a new disease, it is ideal, but not necessary, to know the basic mechanisms of action involved in a drug’s biological effects. This review compiled the available information regarding the various effects attributed to Ivermectin. The controversy over its use for the treatment of COVID-19 is demonstrated by this report that considers the proposal unfeasible because the therapeutic doses proposed to achieve this effect cannot be achieved. However, due to the urgent need to find a treatment, an exhaustive and impartial review is necessary in order to integrate the knowledge that exists, to date, of the possible mechanisms through which the treatment may be helpful in defining safe doses and schedules of Ivermectin.
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