On the evening of Nov. 7, Steffanie Strathdee sent out a cryptic tweet: “#Phage researchers! I am working with a team to get Burkholderia cepacia phages to treat a 25 y old woman with CF whose infection has failed all #antibiotics. We need lytic non-lysogenic phage URGENTLY to find suitable phage matches. Email if you can help!” The message was retweeted nearly 400 times.