Impact of Vector Control Activities during the Yellow Fever Epidemic in Luanda, Angola, 2016 - Abstract
Angola is one of the countries included in the endemic areas of yellow fever transmission in Africa. At the end of December 2015, an outbreak of Yellow Fever was detected in Luanda. The objective was to evaluate the impact of the vector control activities carried out in the epicenter of the yellow fever epidemic on House, Breteau and Containers indices. The work was carried out in Tempo Muda district belonging to Viana Municipality during one month (April - May, 2016). All the deposits that contained water at the moment of the inspection were reviewed. The control methods used were biological control Bacillus thuringiensis (Bactivec®) as larvicide; chemical control using pyrethroid insecticide as adulticide, environmental control and social mobilization through education to the community. At the end of each week the indices were calculated.
Results: High values of the House, Container and Breteau indices was found in Tempo Muda district at the beginning of the work followed by one decrease which demonstrates the effectiveness of the anti-vector measures implemented. The highest positivity with Aedes aegypti was found in containers such as, basins 158 (30.6%) followed by buckets 122 (23.6 %) representing between them more than half (54.2%) of the deposits.
Conclusion: These results suggest that the actions through integrated actions against the vector inside and outside the home it is a fundamental component in the control of Yellow Fever epidemics where there is not high coverage of people immunized by the vaccine or where do not have the vaccine.