Yellow Fever: Symptoms, Prevention, and Quarantine Measures

1. YELLOW FEVER 黄 热 病 上海出入境检验检疫局 SHANGHAI ENTRY-EXIT INSPECTION AND QUARANTINE BUREAU

2. What is yellow fever？ • Yellow Fever：Yellow fever is a viral disease, found in tropical regions of Africa and the Americas. It is transmitted via the bite of Aedes mosquitoes. It can produce devastating outbreaks, which can be prevented and controlled by mass vaccination campaigns. • Clinic symptoms:the symptoms of fever, jaundice, nausea and vomiting, headache and back pain. • Latentperiod：3-6 Days Travelers from yellow fever risk regions with the symptoms of fever, jaundice, nausea and vomiting, headache and back pain,rash can get consultation and free detection at Quarantine Office.

3. Yellow fever endemiczone Angola On 21 January 2016, the National IHR Focal Point of Angola notified WHO of an outbreak of yellow fever. As of 8 February, a total of 164 suspected cases and 37 deaths had been reported in Angola. Travelers from yellow fever risk regions with the symptoms of fever, jaundice, nausea and vomiting, headache and back pain,rash can get consultation and free detection at Quarantine Office.

4. Basic link of transmission Susceptible population Vector of infection Source of infection Patients and The recessive infection Universal human susceptibility Aedes Mosquitoes Travelers from yellow fever risk regions with the symptoms of fever, jaundice, nausea and vomiting, headache and back pain,rash can get consultation and free detection at Quarantine Office.

5. How to prevent yellow fever？ Vaccination is the most important preventive measure against yellow fever. Anti-mosquito Isolation Protect susceptible people Management of infection Strengthen the border quarantine Anti-mosquito is an effective measure to prevent yellow fever. Cutting off the epidemic's transmission route Travelers from yellow fever risk regions with the symptoms of fever, jaundice, nausea and vomiting, headache and back pain,rash can get consultation and free detection at Quarantine Office.

6. Quarantine measures Any person who is older than one year from Angola shall produce valid yellow fever vaccination certificate to the inspection and quarantine institution to enter the country. For people without a valid yellow fever vaccination certificate, inspection and quarantine institutions may request 6-day detaining inspection calculated from the date when they leave the infected environment. If people from Angola have a fever, jaundice and other symptoms, they shall take the initiative to orally report to the inspection and quarantine institutions for entry; People with the above symptoms after entry into the country shall immediately seek medical treatment and report the latest travel experience to the doctor in order to receive timely diagnosis and treatment. Inspection and quarantine institutions shall strengthen the work such as body temperature detection, medical tour inspection, etc. to people from infected areas. For people who report the said symptoms, the discovered yellow fever patients and suspected yellow fever bearers, who have either initiative declared or been detected on the spot, inspection and quarantine institutions shall take isolation and other necessary medical tests for free. Travelers from yellow fever risk regions with the symptoms of fever, jaundice, nausea and vomiting, headache and back pain,rash can get consultation and free detection at Quarantine Office.

7. Health Tip Travelers to the endemic area of yellow fever need to vaccination for 10 days in advance. Specific immunization matters can to the local entry-exit inspection and quarantine institution and its international travel health care center to consult, or visit the site of Shanghai entry-exit inspection and quarantine bureau （http://www.shciq.gov.cn） for further information. Travelers from yellow fever risk regions with the symptoms of fever, jaundice, nausea and vomiting, headache and back pain,rash can get consultation and free detection at Quarantine Office.