Hi,Veterinary dermatologists test dogs for a variety of allergens, including cat and human dander, trees, molds, house dust, dust mites, fleas, grasses and household synthetics.o, the allergy testing shows a total of 7 allergens to which she responded with an allergic reaction (the human dander being the highest). I believe that if there are more than 3 or 4 allergens contributing to the allergy, it is very unlikely that desensitization will be effective.
Trend analysis is the practice of collecting information and attempting to spot a pattern, or trend, in the information. In some fields of study, the term trend analysis has more formally defined meanings.
Secondary data. Secondary data refers to data that was collected by someone other than the user. Common sources of secondary data for social science include censuses, information collected by government departments, organisational records and data that was originally collected for other research purposes. Primary data, by contrast, are collected by the investigator conducting the research.