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Ticks have long been an unwelcome consequence of spending time outdoors, but the public health significance of tick exposure is becoming difficult to ignore. Changes in the geographic distribution of tick species, longer periods of seasonal activity in some regions, changing land-use patterns, movement of wildlife hosts, and increased human exposure to tick habitats make the risk of tick-borne disease an increasingly important public health issue in the United States and elsewhere. In the United...

The threat of the Zika Virus grows every day, and the need for clear information is especially pressing if you are pregnant.  How do you prevent getting infected with the Zika Virus, and what insect repellents are best?  The first question is easy to answer:  public health experts agree that women who are pregnant or who might be pregnant should use insect repellents.  The answer to the second question is not so simple. I am a former senior official at the U.S. Environmental...