2013 dengue outbreak in Singapore

In the 2013 dengue outbreak in Singapore, a significant rise in the number of dengue fever cases was reported in Singapore. The outbreak began in January, with the number of infections beginning to surge in April, before eventually reaching a peak of 842 dengue cases in the week of 16–22 June 2013. This figure was far beyond the highest number of cases per week in the previous three years. Although there were concerns that the rate of infection could exceed 1,000 per week, these fears did not materialize.

As official data showed, more than 13,000 people were infected with dengue as of mid-July in 2013, fast nearing the total of 14,209 infections in the 2005 dengue outbreak, the worst year on record. The 2005 record was surpassed in the week of 4–10 August, when the total number of cases of reached 14,217. The year ended with a total of 22,170 people infected with the disease, a record that would stand until 2020.