Believe me, the Myanmar governement will not let you get anywhere near the fighting. Big sections of the country are closed to foreigners, so this will be a non-issue for you.

Do make an appointment with your closest travel medicine or tropical medicine clinic.

The cdc has recommendations for immunizations, take a look at www.cdc.gov/travel and look at the recommendations for Burma. Basically, you should have routine immunizations like diptheria/tetanus, Measles/Mumps/Rubella boosters as needed, and Hep A that you should have just to stay at home. In addition, you should get the typhoid vaccine. Note that the oral vaccine lasts 4-5 years, the shot lasts 2 years. Almost all of the country is considered malalrial risk.

There is no vaccine for dengue. You will want to take mosquito precautions everywhere - a good repellant (look at the cdc recommendations.

Do you have medical evacuation insurance? This is one place where it may make sense to have it. We buy it by the year for very low cost. Were you to get injured or very ill, you would want to get to Bangkok as soon as possible. Medical care for locals is neraly non-existent. Fake meds ar everywhere. Take along any medication - both over the counter and prescritption you might need. Medications are inexpensive and readily available in Thailand. Thailand has excellent medical care available.