evidence: Social media posts claim pharmaceutical and biotechnology company Moderna has "confirmed" mRNA COVID-19 vaccines cause cancer, citing an article with a headline to that effect. [...] According to the National Cancer Institute, there is no evidence COVID-19 vaccines cause cancer, lead to recurrence, or contribute to disease progression. The institute also notes that COVID-19 vaccines don't change DNA or genetic codes. [...] The American Cancer Society also says there is no information suggesting COVID-19 vaccines cause cancer and no evidence the vaccines can cause cancer to grow or recur.