INFECTIOUS AGENT. Viral pathogens are the most common cause of respiratory infection in travelers; causative agents include rhinovirus, respiratory syncytial virus, influenza virus, parainfluenza virus, human metapneumovirus, measles, mumps, adenovirus, and coronavirus.
Find a repair shop that will cut out the bad section of metal brake line and insert a new section. Some shops will want to replace the whole brake line, but that can be more expensive and not needed in many cases. You'll pay $300 or so depending on the location of the leak.
As you can imagine, it costs a lot of money to fix a head gasket leak because the mechanic is going to have to remove the head off the top of the engine, which will take a lot of labor hours. A repair like this can easily cost between $1,000 and $2,000. Another common source of a leak is the radiator.