In a partnership with the Bay Area Lyme Foundation, his lab also tests ticks from throughout the United States; people who have been bitten send the tick to his lab to determine what kind of tick it is and whether it's infected with Lyme.
The CDC reports that between 2004 and 2016, more than 640,000 cases of these diseases were reported. "There is a role for everyone".
The data include illnesses reported in the us states and territories. Tick-transmitted diseases are more likely to affect Northeastern states.
In 2004, just 27,388 cases of these diseases were reported.
Redfield said the growing burden of vector-borne disease has increased the demand on these organizations and said the CDC must continue to support and enhance their ability to combat them.
Tick-borne diseases and mosquito-borne diseases also seem to follow different patterns.
The 16 vector-borne illnesses that state health departments are required to report include nine mosquito-borne diseases - West Nile, dengue, chikungunya and Zika among them - and six tick-borne diseases, including Lyme, which is by far the most prevalent vector-borne disease in the country, with more than 402,000 cases reported over the study period. Similarly, only 840 cases of West Nile virus were diagnosed in 2016, but data suggests as many as 91,000 Americans may have been infected but not diagnosed. In 2016, there were more than 47,000 mosquito-borne illnesses, largely due to Zika virus. This includes a doubling of diseases transmitted by ticks, which in turn accounted for 60 percent of all vector-borne diseases, he said. "The threat of disease spread by these vectors are increasing", Dr. Redfield warned.
US Illnesses Tied to Ticks, Mosquitoes Are Soaring
Warmer summer temperatures also tend to bring outbreaks of mosquito-borne illnesses, Petersen said.
Peterson declined to say specifically if climate change is behind the alarming numbers.
Tick-borne diseases are mainly found in the eastern continental United States and areas along the Pacific coast, the researchers said.
Other factors, including an increase in global travel and more people living near wildlife, also affect the spread of these diseases, Petersen said.
"The data show that we're seeing a steady increase and spread of tick-borne diseases, and an accelerating trend of mosquito-borne diseases introduced from other parts of the world", Dr. Lyle Petersen, director of the Division of Vector-Borne Diseases in the CDC's National Center for Emerging and Zoonotic Infectious Diseases, said in a statement.
The researchers noted that these illnesses often go unreported; for instance, a person may have contracted Zika or West Nile virus but have never gone to the doctor. In 2016, the number of Lyme diseases reported for the United States was 36,429.
He cited a 2017 survey that found that "84% of vector control organizations report needing improvement in one or more of five core competencies", adding that they are looking to expand the number of prevention and control programs, as well as looking to rebuild comprehensive vector control programs.
Armenian opposition leader says plans to form "government of accord"
Since 13 April, tens of thousands have come out to the streets daily in what Pashinyan has called a "velvet revolution". On April 26, the opposition party Yelk nominated Nikol Pashinyan for the post of the prime minister.