Perform sentiment analysis on the following tweet and label it as positive, negative or neutral.
The new coronavirus vaccine is a major breakthrough.
This tweet can be considered as positive, as it conveys a sense of optimism and hope about the new coronavirus vaccine being a major breakthrough.
Complete the following task based on the instruction and optional input provided.### Instruction:
Perform sentiment analysis on the following tweet and label it as positive, negative or neutral.

### Input:
The new coronavirus vaccine is a major breakthrough.

### Output:
This tweet can be considered as positive, as it conveys a sense of optimism and hope about the new coronavirus vaccine being a major breakthrough.