$AKER - Akers Biosciences up 62% on advancement of COVID-19 vaccine https://t.co/1a5Q8svZz1
### Instruction: What is the sentiment of this news? Please choose an answer from {negative/neutral/positive}
### Input: $AKER - Akers Biosciences up 62% on advancement of COVID-19 vaccine https://t.co/1a5Q8svZz1
### Response: positive