Table 2.

Sample false-positive and false-negative tweets of the COVID-Twitter-BERT classifier (with the keywords that matched the data collection query in italics).

Number	Tweet	Actual	Predicted
1	“I am always advocating for people to get the vaccine,“ says @QCC_CUNY Public Safety Specialist Doodnauth Singh. ”It is safe and has been tested a lot. I am in excellent health, but tested positive for COVID in December. Stay safe, not sorry.“	–	+
2	I just received the results of my COVID Antibody test. After 6 months from my 2nd shot, I am happy to report that I tested POSITIVE!!!!	–	+
3	After another night in the hospital I’ve decided I won’t let Covid take me out! I’m Hanging on!	+	–
4	Me and my bf literally sleep in the same bed everyday his covid test was negative mines was positive this is crazy	+	–
5	I've had and recovered from covid getting monoclonal antibodies. I got the J & J vaccine. I read that I have a 90% chance of not contracting covid again and a 100% chance of not being hospitalized. Are these numbers true?	+	–