It is very important to fill out the volunteer form so that you are registered with your email and thus receive the invitation to the next conference call.
No, the most important thing is to want to serve people in dire need in different areas. In the volunteer form you will indicate in which area you want to help.
May be required depending on the country, that is why it is important to register and participate in the conference call.
Most countries recommend not to travel if the passport does not have at least 6 months of validity and a blank page.
If you already have it better, but all volunteers are also covered by insurance that covers them for any inconvenience.
You just have to ask your doctor if you can travel by plane and have enough medicine for every day since you may not be able to get it in another country.
Yes, it is necessary to have the tetanus vaccine.
The accommodation depends on the country. Generally we will stay in a hotel or hostel. You may be sharing a room with another volunteer and all the food will be vegetarian.