2.2.2. Secondary data
The larval and adult mosquito data were collected in collaboration
with the Ministry of Health branch in Dammam. Data
collection was carried out from January to December 2014.
The monthly data were collected and compiled to each study
site for 2014. A sampling of mosquito larvae was carried out
in various breeding habitats by taking 3–5 scoops of water
for each sampling location to check for the presence of larvae
(Alahmed, 2012). Mosquito larvae were identified using a dissecting
microscope. Electric flycatchers and a cow sheet with a
spray were used to catch adult mosquitoes from the same sampling
locations.
The meteorological data of temperature, relative humidity
and precipitation were obtained from the Presidency of Meteorology
and Environment (PME) Dammam for the period
noted above. Temperature can be defined as the mean average
of minimum and maximum temperatures, measured in degree
Celsius (C). Relative humidity (RH), expressed in percentage
(%), is the average monthly humidity based on the daily
records. Precipitation/rainfall is the amount of rainfall in the
month, measured in millimeters.