This is true. If untreated male and females can become sterile. For women this would be called PID or pelvic inflammatory disease.
For the first triangle, here are 3 ways to keep yourself safe and others as well :
1. Wear a mask
2. Social Distance
3. Stay home if you do not feel well
By telling your community how to protect themselves in their enviroment
No, this is false!
For example, most people who experience concussion will experience a loss of consciousness - but not all of them. Some additional sources include nausea, vomiting, feeling dizzy, loss of balance and difficulty walking and headaches.