Mandatory occupational vaccination for health care workers (HCWs) is a debatable issue, especially during the COVID-19 pandemic. This study aimed to determine Mongolian HCWs’ attitudes towards mandatory occupational vaccination, the intention to get the COVID-19 vaccine, and the associated factors. A cross-sectional study based on an online survey with a convenience sampling strategy was conducted from February to April 2021 among 238 Mongolia HCWs. Chi-square and logistic regression were performed for analysis. While only 39.9% of HCWs were aware of recommended occupational vaccinations, they highly agreed with the mandatory occupational vaccination on HCWs (93.7%). The agreement rate is significantly higher than their attitude toward general vaccination (93.7% vs. 77.8%). HCW’s willingness to get the COVID-19 vaccine was high (67.2%). HCWs aged 26–35 years old who worked in tertiary level hospitals had less willingness to get the COVID-19 vaccine (50%). Participants with lower confidence in the efficacy of the COVID-19 vaccine (ORs = 15.659) and less positive attitudes toward general vaccination (ORs = 5.288) were less likely to get the COVID-19 vaccine. Mongolian HCWs’ agreement rate of mandatory occupational vaccination is higher than other countries. Their intention to get the COVID-19 vaccine is high and associated with confidence in the effectiveness of the vaccine.

Metals occur naturally in soil and many kinds of rocks, particularly in minerals and ores, which also play a vital role in living systems such as plants and animals. Over a long period of time , metal evolution from toxin to the drug has achieved a milestone in medicine. Currently, a few metal-based drugs (i.e., metallodrugs) have been used in the clinic to treat patients with different medical conditions, making exciting new developments in anticancer therapeutics (e.g., arsenic trioxide and cisplatin) that quickly move into focus. Moreover, a thorough understanding of the properties and effects of metals on the human body could improve the development and innovation of metal-based drugs. In this review, we have comprehensively described the discovery and development of metal-based anticancer drugs, as well as their side effects in clinical treatment. Although metallodrugs have shown promising outcomes in the treatment of cancers, further investigation is needed to optimize their side effect for broader applications.