On July 20, 2016, the Taiwan Centers for Disease Control (Taiwan CDC) announced two new indigenous dengue cases. The two cases respectively are a 65-year-old female who resides in Kaohsiung City and a 23-year-old female who resides in Tainan City. Both cases are the first dengue case confirmed in the respective city since this summer. As afternoon rain has continued to occur in some parts of Taiwan, Taiwan CDC urges the public to reinforce the cleaning and removal of vector breeding sites in and around their residence in order to lower the risk of infection. If suspected symptoms develop, please seek immediate medical attention. Additionally, healthcare facilities are also urged to report suspected cases to the health authority as soon as possible in order to facilitate subsequent implementation of prevention measures.

The case in Kaohsiung City began symptoms such as fever and coughing on July 6, and sought medical attention and was reported to the health authority as a suspected dengue case on July 9. Infection with dengue was confirmed in the case on July 16. During the incubation period, the case primarily visited the mall and gym around her home. She was infected with dengue last December. As of now, the case is in good health conditions.　　The case in Tainan City sought medical attention after experiencing fever, fatigue and loss of appetite on July 13, and was hospitalized the next day. Subsequently, she developed nausea, vomiting and diarrhea and was reported to the health authority as a suspected dengue case. Infection with dengue was confirmed in the case on July 18. As of now, the case is still being hospitalized for treatment. According to the epidemiological investigation, the case had an operation and was hospitalized during the incubation period. She was discharged from the hospital on July 12. Therefore, the source of her infection is still being investigated. At the moment, none of the family members residing in the same households with the two cases have developed suspected symptoms. To prevent the further spread of the disease, the local health bureaus in Tainan City and Kaohsiung City have implemented relevant prevention and control measures.

Thus far this year, as of July 19, 2016, a cumulative total of 375 indigenous dengue cases, including 341 cases in Kaohsiung City, 21 cases in Pingtung County, 8 cases in Tainan City, and 5 cases in 5 other counties and cities, have been confirmed in Taiwan. The majority of the cases occurred during the outbreak that started last year. The onset dates for the last reported cases in Pingtung County, Kaohsiung City and Tainan City respectively are June 24, July 6, and July 13, 2016. The average number of days between the symptom onset date and the date of report notification to the health authority is 2.4. On the other hand, a cumulative total of 152 imported dengue cases have been confirmed in Taiwan and they were mostly from Southeast Asian countries, including Indonesia and Malaysia.　　

As summer in Taiwan is hot and humid, Taiwan CDC urges the public to empty and clean any potential vector breeding sites in and around the home periodically in order to prevent dengue transmission. Travelers planning to visit areas affected by vector-borne diseases are urged to take precautions against mosquito bites. If symptoms such as fever, headache, retroorbital pain, myalgia, arthralgia, and rash develop, please seek immediate medical attention and inform the doctor of any relevant medical history, recent travel history and activity to facilitate prompt diagnosis and case reporting. For more information, please visit the Taiwan CDC website at http://www.cdc.gov.tw or call the toll-free Communicable Disease Reporting and Consultation Hotline, 1922 (or 0800-001922).