• Arthropod-bourne viruses "Arbovirus"

• >500 but only some cause human disease. Multiply within tissues of arthropod, especially salivary gland. Vaccine available for a few (JE, YF).

• Clinical symptoms: systemic febrile disease, haemorrhagic fever (DENV, YF, CHIKV, RVFV), encephalitis (JE, WNV, TBEV..), polyarthralgia (CHIKV..)

Only non-flavivirus is CHIK

ONly ....non XXX mosquito is....?Zika?

Arbovirus transmission cycle