  Crimean-Congo haemorrhagic fever (CCHF) is a tick-borne zoonotic disease
caused by the Crimean-Congo hemorrhagic fever virus (CCHFV). Ticks belonging to
the genus \textit{Hyalomma} are the main vectors and reservoir for the virus.
It is maintained in nature in an endemic vertebrate-tick-vertebrate cycle.
CCHFV is prevalent in wide geographical areas including Asia, Africa,
South-Eastern Europe and the Middle East. Over the last decade, several
outbreaks of CCHFV have been observed in Europe, mainly in Mediterranean
countries. Due to the high case/fatality ratio of CCHFV in human sometimes, it
is of great importance for public health. Climate change and the invasion of
CCHFV vectors in Central Europe suggest that the establishment of the
transmission in Central Europe may be possible in future. We developed a
compartment-based nonlinear Ordinary Differential Equation (ODE) system to
model the disease transmission cycle including blood sucking ticks, livestock
and human. Sensitivity analysis of the basic reproduction number $R_0$ shows
that decreasing in the tick survival time is an efficient method to eradicate
the disease. The model supports us in understanding the influence of different
model parameters on the spread of CCHFV. Tick to tick transmission through
co-feeding and the CCHFV circulation through trasstadial and transovarial
stages are important factors to sustain the disease cycle. The proposed model
dynamics are calibrated through an empirical multi-country analysis and
multidimensional scaling reveals the disease-parameter sets of different
countries burdened with CCHF are different. This necessary information may help
us to select most efficient control strategies.
