The symptoms of Lyme disease include fever, fatigue, headaches, muscle aches and joint pain.
Symptoms are similar to those of flu, pneumonia and meningitis, but they last longer and can cause more serious side effects, such as heart problems and brain damage.
Symptoms usually begin to appear between six months and one year after the initial tick bite, but symptoms may linger for up to six months.
The symptoms can last for days and include mild fever, chills, fatigue and shortness of breath.
They can also be accompanied by weakness, loss of appetite, a cough, fever and joint aches.
People with Lyme disease are at greater risk of developing other conditions, including pneumonia and a range of other conditions.
Symptoms can also cause severe headaches and can lead to kidney problems.
Treatment is often difficult and requires long-term hospitalization, although some doctors say they are often able to treat people who recover.
In a new study, researchers examined data from more than 300,000 people in the United States who were treated for Lyme disease over a 10-year period.
They found that more than 90 percent of people who were diagnosed with Lyme and treated for the disease were able to maintain their condition.
Symptom severity was measured by a standardized scale.
Researchers also looked at a number of other indicators of the condition, such how often people reported symptoms and how often they used the internet.
“I think the big thing is that it was an incredibly thorough study,” said Dr. Peter S. Roth, director of the Division of Infectious Diseases at the University of Texas MD Anderson Cancer Center.
“It was a very large sample size, and it was done in the U.S. in a very timely fashion.”
Dr. Roth said his team found that while most people who developed Lyme disease had mild symptoms, most of the time, they did not have a severe disease.
“We found a very low prevalence of patients who had a chronic condition like fibromyalgia, who were taking antidepressants or taking medications that were not being well tolerated, or who were using steroids,” he said.
“It’s the combination of both of those things that really made us really think we had a high prevalence of chronic Lyme disease.”
In their study, the researchers found that in 2016, nearly half of the people who reported Lyme disease experienced a severe or disabling illness, including:The severity of their illness was linked to their age, gender, race and ethnicity.
For example, black people who had been diagnosed with chronic Lyme were more likely to have a disability.
People who were found to have Lyme disease were more than twice as likely to be unemployed and less likely to work than those who did not.
People in the middle income group were more like those in the lowest income group, who had about a 15 percent chance of developing Lyme disease.
People at the lower end of the income spectrum were about five times more likely than those in higher income to have been diagnosed.
The researchers also found that about half of people with Lyme were unemployed.
People diagnosed with the condition were about twice as often hospitalized as people not diagnosed.
And nearly two-thirds of people whose condition was found to be chronic were hospitalized.
The study found that there were several types of chronic illness that people with chronic illnesses had, including arthritis, headaches and joint and muscle pain.