Background: Various variants of the covid-19 have started to attract attention recently. The clinical course of these variants and possible predictive parameters are being investigated. This study aimed to examine the relationship between thiol levels, which are indicators of oxidative stress, and variant covid-19 types. Methods: In this cross-sectional study, patients with a diagnosis of classic covid-19 and patients with a diagnosis of variant covid-19 with mild and moderate symptoms followed in the clinical observatory of Ankara city hospital were included in the study group. The patients were divided into two groups according to the covid-19 type as variant and classic covid-19, and a healthy control group is added for comparison. A complete blood count and thiol analysis are performed from the venous blood samples. Obtained results were compared between groups, and the ROC analysis is performed. Results: Thiol levels were significantly lower in patients with a diagnosis of Covid-19 compared to the control group. In terms of WBC, lymphocyte, neutrophil, NLR, ferritin and thiol parameters, patients with variant covid-19 differed significantly from patients with a classic covid-19 diagnosis. Thiol levels’ cut-off values to distinguish between variant covid-19 patients and control group from classical covid-19 patients were almost identical (423 and 422 µmol/L, respectively). Conclusions: It seems possible to use thiol as a sensitive, specific and cost-effective marker to suspect variant covid-19 cases. Since this study is probably the first example in this subject, it would form a basis for further studies. Keywords: Covid-19, SARS-CoV-2, variant covid-19, thiol, oxidative stress.

Objective: It was aimed to compare the breastfeeding status and healthy life style changes, eating behaviors, attitudes, and orthorectic tendencies of mothers. Materials and Methods: All volunteered mothers who have a child between the ages of 0 and 2 were included in this cross-sectional study. 514 individuals were included. Five parted questionnaire and “ORTO-11” test and “Eating Attitude Test” was used. Results: A statistically significant relationship was found between breastfeeding status and working status and professions of mothers. Mothers who did not breastfeed, skipped main meal more frequently, and smoking and occasional alcohol consumption was higher. The mean score of the participants on the ORTO-11 scale was 25.09 ± 4.80, EAT-40 scale mean score was 18.80 ± 10.42. High risk in eating attitudes was found in 12.0% of all participants. It was observed that mothers who did not breastfeed were mostly in high risk group in terms of eating attitude. Conclusion: Mothers who did not breastfeed were mostly in high risk group in terms of eating attitude compared to breastfeeding mothers. It is of great importance that healthcare professionals organize trainings for increasing the general level of knowledge of mothers and provide healthy living and breastfeeding counseling.