Annals of Tropical Medicine and Public Health

LETTER TO EDITOR
Year
: 2017  |  Volume : 10  |  Issue : 3  |  Page : 774-

Expected risk of Zika virus infection for foreign visitors to the 2016 Summer Olympic Games in Brazil


Beuy Joob1, Viroj Wiwanikit2,  
1 Sanitation 1 Medical Academic Center, Bangkok, Thailand
2 Hainan Medical University, Hainan, China

Correspondence Address:
Beuy Joob
Sanitation 1 Medical Academic Center, Bangkok
Thailand




How to cite this article:
Joob B, Wiwanikit V. Expected risk of Zika virus infection for foreign visitors to the 2016 Summer Olympic Games in Brazil.Ann Trop Med Public Health 2017;10:774-774


How to cite this URL:
Joob B, Wiwanikit V. Expected risk of Zika virus infection for foreign visitors to the 2016 Summer Olympic Games in Brazil. Ann Trop Med Public Health [serial online] 2017 [cited 2019 Jun 26 ];10:774-774
Available from: http://www.atmph.org/text.asp?2017/10/3/774/213156


Full Text



Dear Sir,

The present Zika virus infection outbreak in South America has become a global concern. In this year's Olympic Games held in Brazil, the fear of Zika virus is a big issue for discussion.[1],[2] Indeed, the concern about the health of visitors to Brazil during the Games is widely discussed. On the basis of the previous report by Ximenes et al.,[3] the estimated risk of another important arboviral disease, dengue, was done. Ximenes et al. found that “the expected number of symptomatic and asymptomatic dengue cases among tourists will be 23 and 206 cases, respectively.”[3] Here, the authors use the same mathematical method for estimation of the expected risk for Zika virus infection. To modify the mathematical model, simulation was based on the recent data from the Wikan et al.[4] on the concurrent infection between dengue and Zika virus infections. On the basis of the present study, the expected worst-case situation is “an incidence of 4.40 and 39.382 per 100,000 individuals for symptomatic and asymptomatic Zika virus infections.” Of interest, this derived rate is significantly lesser than that estimated by Ximenes et al.[3] for dengue. This can confirm the recent note that “Zika is not a reason for missing the Olympic Games in Rio de Janeiro.”[5]

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.

References

1Burattini MN, Coutinho FA, Lopez LF, Ximenes R, Quam M, Wilder-Smith A, et al. Potential exposure to Zika virus for foreign tourists during the 2016 Carnival and Olympic Games in Rio de Janeiro, Brazil. Epidemiol Infect 2016;144:1904-6.
2Petersen E, Wilson ME, Touch S, McCloskey B, Mwaba P, Bates M, et al. Rapid spread of Zika virus in the Americas-Implications for public health preparedness for mass gatherings at the 2016 Brazil Olympic Games. Int J Infect Dis 2016;44:11-5.
3Ximenes R, Amaku M, Lopez LF, Coutinho FA, Burattini MN, Greenhalgh D, et al. The risk of dengue for non-immune foreign visitors to the 2016 Summer Olympic Games in Rio de Janeiro, Brazil. BMC Infect Dis 2016;29:16186.
4Wikan N, Suputtamongkol Y, Yoksan S, Smith DR, Auewarakul P. Immunological evidence of Zika virus transmission in Thailand. Asian Pac J Trop Med 2016;9:141-4.
5Codeço C, Villela D, Gomes MF, Bastos L, Cruz O, Struchiner C, Carvalho LM, Coelho F. Zika is not a reason for missing the Olympic Games in Rio de Janeiro: Response to the open letter of Dr Attaran and colleagues to Dr Margaret Chan, Director-General, WHO, on the Zika threat to the Olympic and Paralympic Games. Mem Inst Oswaldo Cruz 2016;111:414-5.