Original sentence: In February 2020, a letter was published in The Lancet authored by 27 scientists and spearheaded by Peter Daszak which described some alternate origin ideas as conspiracy theories.and co-signed by 27 co-authors that labelled alternate origin theories as conspiracy theories
Edited sentence: In February 2020, a letter was published in The Lancet, led by Daszak and co-signed by 27 co-authors that labelled alternate origin theories as conspiracy theories