When it comes to the health in Bangladesh as a whole there are many concerns that have yet to be completely addressed by medication in the country. Though health in Bangladesh is better than it was just a few short years ago there are still many cases of malaria reported in the country on a yearly basis so before you travel to Bangladesh you should be aware that you may need vaccinations for the vaccine preventable diseases of the country. If you are unsure of your health risks and of exactly what vaccinations you should take then talking to a doctor at your local hospital could be something that will benefit you greatly. Talking to a doctor in Bangladesh about vaccinations is advisable as well if you are already in the country but to have the greatest benefit to your health you should talk to your doctor 4 weeks before you travel to Bangladesh at least.
The CDC would recommend that you talk to a travel doctor about any disease related medication or vaccinations you may need for your trip as a travel doctor can give you more insight then a standard physician. In addition to this if you have any preexisting conditions you should fully disclose this with any medical specialist you speak to before your trip. If you plan on traveling to areas outside of Bangladesh it is also a good idea to disclose this information to your doctor as other countries may be faced with other healthcare concerns that you should be aware of. People who travel for longer periods of time may also need special vaccinations and those who may go to Bangladesh for a school or work venture may be supplied with vaccinations and medications from their respective school or employer. In any case it is important that you are practicing safety by protecting yourself by these means.