Every year, millions of people visit developing countries. Of these, many are business people looking for new opportunities.
With a myriad of development potential available in Asian region, business people are flocking overseas in order to get in at ground floor. Many travel to these regions on a regular basis, exposing themselves to diseases ranging from differing strains of hepatitis to typhoid and polio.
Unfortunately, many of these diseases are not discriminating - they can be caught even when staying in 5-star accommodation. Also, some of them require long convalescent periods. For example, hepatitis A can mean an absence from work of up to 8 weeks, depending on severity of attack.
The problem facing business people and travellers is that often they have not been exposed to a wide range of infections. This means they have little or no natural immunity to diseases common in other parts of world.
For example, even when staying at resort-standard hotels in areas such as Taiwan, traveller still has a 1 in 300 chance of developing hepatitis A. Budget travellers increase their risk by as many as six times.
The sensible solution is to make sure you receive recommended vaccinations for any overseas country you visit. It is important, however, to realize that for many vaccines to be totally effective, a series of doses over an extended period of time are required. For example, hepatitis B vaccines usually require a couple of months before they reach their full effectiveness.
Vaccination is not only precaution that should be taken when travelling in a developed country. Many diseases are transmitted through food which has been handled by a carrier of disease. This means that uncooked vegetables, salads, raw meat, shellfish, and drinks made with water or ice are all potential health hazards, and should be approached with caution.