Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia, Wikipedia.


Epidemiology Change in physiological status or in disease occurrence that conforms to a regular seasonal pattern


Occurring regularly at certain times of the year, e.g., in the summer or winter (but not usually during both). Seasonal allergies follow the predictable pattern of occurring when pollen circulates in the air. Seasonal infections, like influenza, are most common in the winter.
seasonality (sē″zŏ-nal′ĭt-ē)

Patient discussion about seasonality

Q. Regarding Seasonal Nasal allergy. My father is suffering from seasonal nasal allergies. He took a 24-hour loratadine pill, 5 hours ago. His nose is still running just like it was. Can I take a benedryl, or is it dangerous to mix loratadine and benedryl? What else can I do to stop my nose?

A. except well known drug interactions- most Dr. check it out with a computer program they have. you need to ask a Dr. or a pharmacist about it. but i can tell you that if you wait 4 times the T1/2 - that is enough to consider the drug out of the system.

Q. i suffer of seasonal allergy , besides pills , are they alternative methods to treat seasonal allergy?

A. Here are a few sites that may be useful:
Hope this helps.

Q. what is the most natural way to treat seasonal Allergy and to ease symptoms of between seasons?

A. here is a web page with info about seasonal Allergy various treatments:

i hope it's what you are looking for.

More discussions about seasonality
References in periodicals archive ?
Although combining GDI with GDP appears to soften the degree of seasonality, the recent residual seasonality in the first quarter nevertheless persists (bottom figure at right).
Srinagar, at >30[degrees]N latitude, has influenza seasonality that coincides with lower temperature and low dew points during winter, whereas New Delhi, at <30[degrees]N latitude, has a peak of influenza circulation that coincides with the rainy season.
The majority of participants (47%) experienced moderate seasonality, followed by mild seasonality (41%) and severe seasonality (12%) when grouped by GSSs.
When the March 2007 ECI data were released, BLS began publishing estimates for five high-level SOC groups and eight intermediate SOC groups, and the series in which seasonality was found were seasonally adjusted.
However, an established pattern of strong seasonality in the series suddenly dissipated after 1990.
For this analysis, total seasonality was measured as a weighted average of the seasonality in employment of the 10 major industry divisions (durable and nondurable goods manufacturing are treated as separate industries), using data from the CES.
There seems to be relatively little forex seasonality in the Australian dollar through the month of September, and the AUDUSD is far more likely to move on developments in Forex Market Fundamental and Technical Forecasts for the AUDUSD.
Despite the seasonality typical of the first quarter of the year, the growing pace of commercial activity was maintained in Colombia during 1Q05, bringing the estimated penetration rate to 27% (vs.
The factors that could cause actual results to differ materially include, but are not limited to, the following: changes in financial markets, general economic conditions within the agricultural industry, competitive factors and price changes (principally nitrogen fertilizer selling prices and natural gas costs), changes in product mix, changes in the seasonality of demand patterns, changes in weather conditions, changes in governmental regulations and other risks described in the "Factors That Affect Operating Performance" section of TNCLP's current annual report.
In addition, another goal in planning our international workshops is to partially offset the seasonality we have historically experienced in United States.
With thousands of SKUs and a very seasonal business, Acorn's main objectives are to plan better for seasonality and optimize its manufacturing capacity.
The Taiwanese mobile phone market defied seasonality to register a sales volume of approximately 1.