MedGen

Lyme disease (named after the towns in the USA where the disease was first identified) is a bacterial infection caused by <i>Borrelia burgdorferi</i>. [from ORDO]

A rare skin disease characterized by widespread cutaneous telangiectases usually &#64257;rst appearing on the lower limbs and slowly progressing upwards to involve the trunk and arms. The lesions can be diffuse, localized, macular, plaque-like, discrete, or con&#64258;uent. Recurrent bleeding from the skin and mucous membranes is not a common feature. Likewise, co-existing epidermal or dermal abnormalities, like atrophy, depigmentation, or purpura, are absent. The condition is non-hereditary, and to establish the diagnosis, other primary and secondary telangiectases must be excluded. [from ORDO]

Infections with bacteria of the genus borrelia. [from MONDO]

Infections with bacteria of the order SPIROCHAETALES. [from MONDO]

Bacterial, viral, or parasitic diseases transmitted to humans and animals by the bite of infected ticks. The families Ixodidae and Argasidae contain many bloodsucking species that are important pests of man and domestic birds and mammals and probably exceed all other arthropods in the number and variety of disease agents they transmit. Many of the tick-borne diseases are zoonotic. [from MONDO]

Infections caused by bacteria that show up as pink (negative) when treated by the gram-staining method. [from MONDO]

An immunodeficiency defined by the absent or suboptimal functioning of one of the complement system proteins. [from HPO]