<unk>  is a single stranded, positive sense RNA virus (ssRNA). It is the only member of the genus<unk> ivirus and belongs to the family of Togaviridae.<unk>  is only known to infect humans, and it is responsible for causing the common childhood<unk> ella infection.<unk> ella infection is also known as German Measles or Three Day Measles. The most devastating consequence is when<unk>  infects pregnant women during their first trimester, as it may result in congenital<unk> ella syndrome in the newborn.<unk> ella infection has largely been eradicated in the developed world since the introduction of the MMR vaccine. However, it is still a challenge in many parts of the developing world due to cost and availability of the MMR vaccine.
Rubella virus
Measles virus
West nile virus
Eastern equine encephalitis virus
Dengue virus
Human bocavirus
Varicella zoster virus
Smallpox virus