Since July 19, several dozen inhabitants of the town of Poipet located on the Thai border had a fever, joint pain and a rash. Samples were taken from 104 patients. The Institut Pasteur in Cambodia confirmed the diagnosis of Chikungunya virus infection on July 22.
So far, according to data released by the European Center for Disease Prevention and Control, only four countries on the Asian continent had reported cases in 2020. This was thein (as of March 1, 2020, health authorities had reported 53 cases in Karnataka state and 13 in Maharashtra state), Malaysia (as of May 23, the Ministry of Health had reported 548 cases mainly in the Perak region), Thailand (June 7, the country’s authorities had described 1,946 cases spread over 54 of the 77 provinces) and Yemen (according to the media, an epidemic of Chikungunya virus infection began at the end of April 2020 in Aden with more than 3,000 cases including 50 deaths).
Virus reminder Chikungunya :
Chikungunya is a mosquito-borne viral disease first described in an outbreak in southern Tanzania in 1952. The virus responsible is arbovirus ((virus transmitted by arthropods), a Alphavirus from the family of Togaviridae. It is transmitted from human to human by the bites of infected female mosquitoes. The mosquitoes involved are most often Aedes aegypti and Aedes albopictus, likely to sting during the day, although their peak activity is mostly in the early morning and late afternoon. Both species bite outdoors, but Aedes aegypti also gladly does it inside buildings.
The disease usually manifests between four and eight days after being bitten by an infected mosquito. It is highly disabling and is characterized by the sudden onset of fever often accompanied by intense joint pain mainly concerning the small joint belts (wrists, fingers, ankles, feet), muscle pain and headache. Most patients make a full recovery, but in some cases the arthralgia can persist for several months or even years. Occasional cases of ocular, neurological and cardiac complications, as well as gastrointestinal pain have been reported. Those most at risk are the chronically ill, young children and pregnant women. Rarely, especially in children, it can cause meningitis. The medical management is purely symptomatic, based on anti-pain and anti-inflammatory treatments.
No vaccine is available against chikungunya.
Travelers are advised to protect themselves from mosquito bites. The usual vector control measures should be observed:
- reduce the time spent outdoors during peak mosquito hours (between dusk and dawn);
- wear light-colored clothing with long sleeves, pants and socks in areas where mosquitoes are present;
- protect yourself from mosquito bites by using insect repellents containing DEET;
- clean gutters and regularly empty birdbaths and other objects liable to collect water;
- ensure that rain barrels are covered with mosquito nets or that they are tightly sealed around the rainwater downpipe;
- improve landscaping to prevent standing water around the house.
People who use sunscreen should apply the repellant 20 minutes after the sunscreen.
In order to avoid the spread of the virus as much as possible dengue, chikungunya or Zika on metropolitan territory, faced with a sudden onset fever and joint or muscle pain within 15 days of returning from your trip, you must consult your doctor as soon as possible by reporting your trip.
Source : Promed.