Background This study aimed to evaluate the perception of self-regulated learning of Brazilian undergraduate dental students during the COVID-19 pandemic. Material and Methods A nationwide cross-sectional survey was conducted. Data were collected in 2020, through an anonymous self-administered virtual questionnaire, which comprised an initial section related to the students’ sociodemographic data, category of educational institution where they enrolled, and the possible impacts of COVID-19 pandemic on family income, teaching activities (maintained remotely or totally suspended), and self-perception of academic performance during e-learning. The second part comprising 31 questions related to the adapted Self-Regulated Learning Perception Scale (SRLPS). For statistical analysis, Student’s t-test of independent samples, Kruskal-Wallis, and Mann-Whitney U test were used, considering a significance of 5%. Results From 779 students, 425 (54.6%) reported distance learning activities during the pandemic, and 354 (45.4%) experienced complete interruption of teaching activities. Students with good performance during e-learning were more skilled in self-regulated learning when compared to those who reported regular ( p = 0.026), bad ( p = 0.000), and very bad ( p = 0.000) performance. In addition, students who stated a good performance during e-learning were more skilled in self-regulated learning than those with fully suspended teaching activities ( p = 0.000). Conclusions E-learning performance of undergraduate dental students during COVID-19 pandemic influenced the self-regulated learning perception. In addition, the pandemic negatively impacted the self-regulated learning of students who experimented full suspension of teaching activities. Changes in family’s income did not affect their self-regulated learning. Key words: Dental education, community health, e-learning, learning, pandemics.

From January 1st up to September 30th 1990, 77 patients with leptospirosis confirmed by laboratory studies were admitted at the Infectious and Parasitic Diseases Service of the Hospital das Clínicas of the Universidade Federal de Pernambuco. Clinical manifestations had sudden onset with presence of fever, headache, chills and muscle pains. Plurisystemic involvement was observed both in the icteric and in the non-icteric patients. The neurological exam was abnormal in 70 of the patients (90.91%). Neurological findings were essentially variable. Though in a transitory form, they allowed the observation of the following clinical forms: meningoencephalitis and polyneuritis in association, meningoencephalitis, polyneuritis, and subarachnoid hemorrhage.

From January 1st up to September 30th 1990, 77 patients with leptospirosis were admitted at the Infectious and Parasitic Diseases Service of the Hospital das Clínicas of the Universidade Federal de Pernambuco. The majority (64) were male patients, and average age was 28 years old. Serovars icterohaemorrhagic and canicola were the most frequent. CSF examination was performed in 67 (87.0%) patients and it was abnormal in 64 (95.52%). Micro-agglutination test for leptospirosis with live antigens was performed in CSF, as well as immunological tests for syphilis, cysticercosis and schistosomiasis for differential diagnosis. Concerning the serovar identification, results of microagglutination test for leptospirosis in CSF were significant considering the similitude of responses when compared to those found for blood samples.

RESUMO -Entre 1-janeiro e 30-setembro-1990 foram estudados 77 pacientes com diagnóstico de leptospirose, admitidos no S D l P / U F P E . O exame neurológico foi anormal em 70 (90,91%) dos pacientes. O exame do LCR, realizado em 67 (87%) dos pacientes, foi anormal em 64 (95,52), tendo como achado mais freqüente a pleocitose. Não houve diferença significativa no comportamento do LCR nas diversas formas clínicas neurológicas observadas, nem quando comparadas as formas ictéricas com as não ictéricas. Bastante significativos foram os resultados da reação de microaglutinação para leptospirose no LCR.PALAVRAS-CHAVE: leptospirose, sistema nervoso, líquido cefalorraqueano, reação de microaglutinação. Involvement of the nervous system in leptospirosis: II Cerebrospinal fluid examination.SUMMARY -From January 1st up to September 30th 1990, 77 patients with leptospirosis diagnosis confirmed by laboratory studies were admitted at the Infectious and Parasitic Disease Service of the Hospital das Clínicas of the Universidade Federal de Pernambuco. The neurological exam was abnormal in 70 of the patients (90.91%). The cerebrospinal fluid (CSF) examination was carried out on 67 (87%) of the patients; it was abnormal in 64 (95.52%) yielding hypercytosis in the majority of cases. There was no difference in the CSF behavior in report to the several neurological forms nor in relation to the icteric or non-icteric forms of the disease. Significant were the results for the microscopic agglutination tests for leptospirosis in the CSF.