SWITZERLAND SICKNESS ON THE SLOPES THE LITTLE ALPINE SKI RESORT OF ZERMATT RAKES IN A LUCRATIVE $10 MILLION FROM VISITORS EACH YEAR, BUT THE AUTHORITIES THERE KNOW THAT CUSTOMERS ARE NOTORIOUSLY FICKLE ,RNIGHT A TOUCH OF BAD WEATHER, BAD SERVICE IN THE HOTELS OR AN UGLY SCANDAL CAN SEND HUNDREDS OF TOURISTS OFF IN A HUFF TO ST . MORITZ OR DAVOS . HENCE THE RELUCTANCE OF ZERMATT'S TOWNSMEN TO TALK ABOUT THE CURIOUS WAVE OF ILLNESS THAT BEGAN POPPING UP THREE MONTHS AGO . THEY STOLIDLY IGNORED WORD FROM A ZURICH PHYSICIAN THAT A PATIENT JUST BACK FROM SKIING IN ZERMATT WAS DOWN WITH TYPHOID FEVER . THEY ALSO SHRUGGED OFF A REPORT THAT AN ITALIAN IMMIGRANT WORKING NEAR ZERMATT HAD FALLEN ILL WITH THE SAME DISEASE . EVEN THEN, ZERMATT OFFICIALS PUBLICLY POOH-POOHED RUMORS OF AN EPIDEMIC . THE ZERMATT TOURIST OFFICE PRONOUNCED ZERMATT'S WATER " 99.93 PER CENT PURE, " WHILE LOCAL CITIZENS DENOUNCED THE " FOREIGN SENSATIONALIST PRESS " FOR REPORTING THE GOSSIP . AS THOUSANDS MORE UNWARY TOURISTS POURED IN, PACKING ZERMATT'S 56 HOTELS TO THE RAFTERS, CASH REGISTERS JINGLED AND TYPHOID SPREAD UNCHECKED . LAST WEEK ZERMATT WAS REGRETTING ITS LAXITY . ALREADY DEAD WERE THREE ZERMATT CITIZENS AND A BRITISH TOURIST . AT LEAST 350 CONFIRMED OR SUSPECTED CASES OF TYPHOID HAD BEEN TRACED TO RECENT ZERMATT VISITORS IN SWITZERLAND AND EIGHT FOREIGN COUNTRIES . LITTLE ZERMATT WAS SUDDENLY IN THE HEADLINES ALL OVER THE WORLD . VIRTUALLY ALL THE 10,000 TOURISTS HAD STAGED A HURRIED EXODUS, LEAVING ZERMATT A GHOST TOWN OCCUPIED BY 120 GREEN-UNIFORMED SWISS ARMY MEDICAL CORPSMEN . BY SEALED TRAIN AND HELICOPTER, THE ARMY MEN EVACUATED LOCAL VICTIMS, AND HEALTH INSPECTORS POKING THROUGH ZERMATT'S WATER SYSTEM DISCOVERED THE PROBABLE CAUSE OF IT ALL A HOLE IN A WATER PIPE INTO WHICH SEWAGE WAS SEEPING . AT WEEK'S END, DENOUNCED AT HOME BY THE VALAIS MEDICAL ASSOCIATION FOR A CONSPIRACY OF SILENCE, AND DISGRACED ABROAD, THE ZERMATT AUTHORITIES AT LAST CLOSED DOWN ALL THE HOTELS AND RESTAURANTS . TO THE VILLAGERS LEFT STRANDED IN DISMAL UNEMPLOYMENT, IT SEEMED A PITY, FOR NEARLY A FOOT OF NEW POWDER SNOW FELL ON THE SLOPES THAT NIGHT . " ABSOLUTELY WONDERFUL SKIING CONDITIONS, " MOURNED GOTTLIEB PERREN, HEAD OF ZERMATT'S FAMED SKI SCHOOL .