CANINE INFLUENZA,FLU,INFLUENZA,CANINE,ANIMALS,CAUSED,VARIETIES,INFLUENZAVIRUS,EQUINE INFLUENZA,VIRUS,DISCOVERED,CAUSE,DISEASE,DOGS,LACK,PREVIOUS,EXPOSURE,NATURAL IMMUNITY,THEREFORE,THE DISEASE,ENDEMIC,REGIONAL,POPULATIONS,THE UNITED STATES,HIGH,MORBIDITY,SYMPTOMS,DEATH,IDENTIFIED,ASIA,OUTBREAKS,THE US,MUTATION,AVIAN INFLUENZA,ORIGINS,DEVELOPED,STRAINS,CONTAGIOUS,SUBTYPE,GREYHOUND,RACE,RESPIRATORY ILLNESS,FLORIDA,RACETRACK,TRANSFER,APPARENTLY,HORSE RACING,TRACKS,DOG RACING,THIS WAS,EVIDENCE,INFLUENZA A VIRUS,CAUSING,SERUM,COLLECTED,RACING,GREYHOUNDS,TESTED,POSITIVE,GOING,RESPIRATORY,DISEASE OUTBREAKS,MAJOR,NEW YORK STATE,BREEDS,RACETRACKS,ARIZONA,ARKANSAS,COLORADO,IOWA,KANSAS,MASSACHUSETTS,RHODE ISLAND,TEXAS,WEST VIRGINIA,AS OF,CONFIRMED,WYOMING,CALIFORNIA,CONNECTICUT,DELAWARE,HAWAII,AREAS,CONTINUOUS,WAVES,CASES,NEW YORK,SOUTHERN FLORIDA,NORTHERN COLORADO,SOUTHERN,SHOWS,THE VIRUS,PEOPLE,CATS,SPECIES,THAILAND,INGESTION,INFECTED,DUCK,VIRUSES,NEGATIVE,SENSE,SINGLE STRANDED,RNA VIRUS,GENOME ANALYSIS,HORSES,POINT MUTATION,GENE,INCUBATION PERIOD,DAYS,VIRAL SHEDDING,SEVEN,TEN DAYS,THE ONSET,INDUCE,CARRIER,STATE,SHOW,MILD,THE OTHER,SUBCLINICAL INFECTION,FATALITY RATE,WAS TO,OVERALL,THE GENERAL,SHELTER,POPULATION,PROBABLY,LESS THAN,COUGH,LASTS,GREENISH,NASAL DISCHARGE,THE MORE,FEVER,PNEUMONIA,INFLUENZA VIRUS,BACTERIA,INFECTIONS,DEVELOP,REACH,PROPER,NECROPSIES,REVEALED,HEMORRHAGIC,VASCULITIS,PRESENCE,UPPER RESPIRATORY TRACT,INFECTION,VACCINATED,CAUSES,KENNEL COUGH,SUSPICION,DOCUMENTED,SERUM SAMPLE,SUBMITTED,LABORATORY,DEPARTMENT OF AGRICULTURE,USDA,ANIMAL AND PLANT HEALTH,INSPECTION,SERVICE,APHIS,VACCINE,MUST,TWICE,WEEK,BREAK,SOUTH KOREA,SOUTHERN CHINA,VARIANT,REPORTED,CHICAGO AREA,US STATES,THE SPRING,SUMMER,THE QUESTION,WHETHER,STRAIN,PROTECTION,CONDITIONAL,RESEARCHERS,THE UNIVERSITY OF WISCONSIN,FINDINGS,HUMAN FLU,SWINE INFLUENZA,CAT FLU,THE NEW YORK TIMES,FOOD SECURITY,PUBLIC,HEALTH,IOWA STATE UNIVERSITY COLLEGE,VETERINARY MEDICINE,