Final answer:
Lyme disease may not present with a rash in 20-30% of cases, making it harder to diagnose without certain blood tests. Prevention is key, using insect repellent, protective clothing, and doing tick checks after potential exposure to reduce the risk of infection.
Step-by-step explanation:
Lyme disease, a common infectious disease, is not always accompanied by the characteristic bulls-eye rash. In fact, 20-30% of cases do not present this rash. Diagnosis without a rash is more complex and relies on other symptoms and diagnostic tests like enzyme immunoassay (EIA) or serological tests such as the ELISA to detect serum antibodies against the bacteria that cause Lyme disease. Even if no rash is present, flu-like symptoms in combination with potential exposure to tick-infested areas can suggest Lyme disease. It's important to remember that these symptoms and tests are part of the diagnostic process and that Lyme disease is treatable, especially when caught early.
To prevent Lyme disease, it's advised to use insect repellent, wear protective clothing, and perform thorough tick checks after being in areas where Lyme disease-carrying ticks may live. Areas with thicker vegetation tend to harbor more ticks. Quick removal of ticks can greatly reduce the chance of infection, and seeking medical advice promptly if symptoms arise is also crucial.