Thiomersal (), or thimerosal (usan, jan), is an organomercury compound. This compound is a well-established antiseptic and antifungal agent. The pharmaceutical corporation eli lilly and company gave thiomersal the trade name merthiolate. It has been used as a preservative in vaccines, immunoglobulin preparations, skin test antigens, antivenins, ophthalmic and nasal products, and tattoo inks. Some people have worried that thimerosal, an ethylmercury-containing preservative in some multi-dose preparations of influenza vaccine, could cause mercury poisoning either in children or affect the unborn children of pregnant women who receive this vaccine. But, for many reasons, thimerosal contained in vaccines is not harmful. since january, writeaprisoner has swelled to over 60 million views on tiktok. While teens say theyre not in danger, some experts are wary of potential harm. Thimerosal (ethylmercury) why is it used? This mercury-containing ingredient has been used as a preservative in vaccines since the 1930s. Preservatives are necessary for preventing dangerous bacterial or fungal contamination, but thimerosal has since become a major source of vaccine safety. Nba commissioner adam silver told players union members to prepare for a situation where the nba has no fans in attendance through the 2021 season, according to an espn report. As much as i wish it were true, i did not make a mistake with regard to the 0. A vaccine shall be considered thimerosal free according to the cdc with 3 mcg.