I thought it might be helpful to have a post with some facts from published websites and papers regarding the chikungunya virus.
Directly from the CDC website:
"There are no antiviral medicines to treat chikungunya Chikungunya is a viral disease that is transmitted to people by mosquitoes:
• Aedes species mosquitoes transmit chikungunya virus
• These same types of mosquitoes transmit dengue virus
• These mosquitoes bite mostly during the daytime
• Symptoms usually begin 3‒7 days after being bitten by an infected mosquito
• The most common symptoms are fever and severe joint pains, often in the hands and feet
• Other symptoms may include headache, muscle pain, joint swelling, or rash
• Mortality is rare but joint symptoms can be severe and debilitating
• There are no antiviral medicines to treat chikungunya
• There are medicines to help reduce the fever and pain "
The picture below shows the mosquito you should look out for (copied from the CDC website). They have stripes on their legs and are often found indoors. If you see one, kill it!
Chikungunya virus (CHIKV) is a mosquito-borne alphavirus that causes chikungunya fever (CHIK), an acute febrile illness characterized by severe and often debilitating arthralgia .
During recent outbreaks, CHIK patients reported a median of 35 days off work, and >60% had persistent arthralgia at 18 months after their acute illness 
Until 2006, the diagnosis of CHIK in a US traveler was rare. However, over the past 4 years, a median of 26 CHIK cases have been identified in the United States each year .
In a study of people after 18 months of having chikungunya in Reunion Island  , we have the following:
- "At the time of assessment, 32 patients (36.4%) considered themselves to have recovered from arthralgia related to chikungunya virus infection. For these patients, the mean duration of chikungunya virus–related arthralgia (±SD) was 2.9±2.4 months. In this group, 10 patients, all of whom had already been affected by chronic arthralgia before chikungunya virus infection, were still experiencing joint pain at the time of assessment that they attributed to the preexisting illness. " 
- "At the time of assessment, 56 patients (63.8%) reported persistent arthralgia related to chikungunya virus infection."  ---That is almost 64% of the patients! 64% had joint pain after 18 months of getting the virus!
- "For 31 patients (55.4%), joint pain was continuous. Arthralgia was polyarticular in all patients. Discomfort in performing the activities of everyday life (e.g., walking, eating, and getting dressed) was identified in 26 patients (46.4%). Relapses were reported by 12 patients (21%). Joint swelling, which was mainly observed in the ankles, was noted in 9 patients (16.1%). Taking self-reported pain into consideration, metacarpophalangeal joints (in 57.1% of patients) and knees (57.1%) were the most affected joints; on physical examination, shoulders (30.4%) and ankles (28.6%) were more frequently involved." 
A study published in 2010 on chronic arthralgia (joint pain) after chikungunya  stated the following:
- Long-term CHIKV rheumatic manifestations seem to be a frequent underlying post-epidemic condition. At the 15-month-evaluation period after diagnosis, 84 out of 147 participants (57%) reported rheumatic symptoms. Of these 84 patients, 53 (63%) reported permanent trouble, while 31 (37%) had recurrent symptoms. 
- As the chronic disease progresses, more severe cases of arthritis were reported 1–2 years post-CHIKV infection. Some patients with chronic associated rheumatism developed progressive erosive arthritis. 
- Pain within or around tendons was also a common trait and evolved to tenosynovitis. 
 Gibney KB, Fischer M, Prince HE, Kramer LD, St George K, Kosoy OL, Laven JJ, Staples JE. Chikungunya fever in the United States: a fifteen year review of cases. Clin Infect Dis. 2011 Mar 1;52(5):e121-6.
 Persistent Arthralgia Associated with Chikungunya Virus: A Study of 88 Adult Patients on Reunion Island
 Emergence and Clinical Insights into the Pathology of Chikungunya Virus Infection