Stomach cancer is hard to detect. It has no symptoms in its early stages, and there is no effective screening to detect its presence. So early detection and early treatment for this disease -- that attacks 800,000 people worldwide -- are hard to come by. In Taiwan, stomach cancer is the fifth most common cancer and the focus of study for researchers working to devise a method for detecting stomach cancer in its infancy.

A team of researchers at National Taiwan University Hospital have discovered a toxic factor -- GroES -- that causes stomach cancer. And they have discovered that a simple blood test will show either a positive or negative result for this substance, leading to immediate endoscopic exams for patients who may be at risk for stomach cancer. The test to identify GroES has already achieved a 65 percent accuracy rate.

Apparently, if the human body is infected with GroES, it produces antibodies to the factor and can cause chronic inflammation of the stomach, causing cells to rupture and proliferate. Long-term inflammation can cause stomach cancer. Researchers say about 45 percent of adults in Taiwan are infected with GroES -- and one percent will go on to develop stomach cancer.

Right now, patent applications are underway in the United States, Japan, and Taiwan. Once a kit is developed, a single drop of blood will be all it takes to determine the risk for stomach cancer.

Chemotherapy is a good remedy for killing cancer cells -- and I hope every day that it did its job and killed all cancer cells that may have floated away from my original breast cancer tumor. But one not-so-good side effect of this good remedy is the beating that healthy cells take in the process of this life-saving treatment. It will be a red-letter day when chemotherapy can target only cancer cells, while leaving healthy cells unaffected. And this day may be a bit closer for patients in Taiwan who find they are in the early stages of relapse with nasopharynx cancer.

On Wednesday, National Taiwan University Hospital introduced a new high-tech laser procedure -- potassium-titanyl-phosphate or KPT -- to vaporize cancer cells. Doctors use a small endoscopic camera and easily manipulate the laser to precisely eliminate the cancer cells in the back of the nose and the soft roof of the mouth -- without harming healthy cells. The procedure takes roughly 90 minutes and requires a two-day stay in the hospital. This procedure should only be used in the early stages of relapse, though, and first-time cancer patients should still seek chemotherapy. And while those in later stages of relapse can still receive the treatment, it will only relieve discomfort without solving the problem.

To date, there have been 16 successful KPT treatments for this disease that about 1,000 people in Taiwan contract each year.