What is an ovitrap and what data does it provide for surveillance?

What is an ovitrap and what data does it provide for surveillance?

• A. An ovitrap monitors egg-laying by collecting eggs and sometimes larvae; provides data on oviposition activity and breeding intensity.
• B. An ovitrap traps adult mosquitoes for removal.
• C. An ovitrap measures water quality.
• D. An ovitrap detects blood meals.

Answer: (A)

An ovitrap is a surveillance device that mimics a mosquito breeding site and collects eggs laid by female mosquitoes. By analyzing the eggs collected (and sometimes allowing them to hatch for larval counts), it provides data on oviposition activity and breeding intensity across locations and over time. This means you get information such as how many eggs are laid per trap, how many traps are positive for eggs, and how egg-laying patterns change seasonally or spatially. These data help identify hotspots, monitor mosquito reproduction, and evaluate the effectiveness of control measures. It’s not designed to trap adults, assess water quality, or detect blood meals, so those types of data aren’t obtained from ovitraps.

An ovitrap is a surveillance device that mimics a mosquito breeding site and collects eggs laid by female mosquitoes. By analyzing the eggs collected (and sometimes allowing them to hatch for larval counts), it provides data on oviposition activity and breeding intensity across locations and over time. This means you get information such as how many eggs are laid per trap, how many traps are positive for eggs, and how egg-laying patterns change seasonally or spatially. These data help identify hotspots, monitor mosquito reproduction, and evaluate the effectiveness of control measures. It’s not designed to trap adults, assess water quality, or detect blood meals, so those types of data aren’t obtained from ovitraps.