The transmission of HIV occurs through the blood system or stream
Well by the way you put the question it seems like there are supposed to be answer choices but, since there are none. I'll still try to answer the question as best as possible
1. Comparing yourself to others is a bad way of trying to improve self esteem
2. Overthinking and overworking yourself is a bad way to improve self esteem
3. Trying to raise confidence in yourself takes time so you have to be patient
And that's all I can think of right now but I hope it helps!
That is true it was for a virus
The second one, increasing your self esteem
Maybe you have allergies since the weather is getting warmer or the flu