¿Qué es una enfermedad sistémica y cuáles son las más frecuentes?

#iguru_soc_icon_wrap_6382d06f82685 a{ background: transparent; }#iguru_soc_icon_wrap_6382d06f82685 a:hover{ background: transparent; border-color: #2c8fa0; }#iguru_soc_icon_wrap_6382d06f82685 a{ color: #2c8fa0; }#iguru_soc_icon_wrap_6382d06f82685 a:hover{ color: #ffffff; }.iguru_module_social #soc_icon_6382d06f826c91{ color: #ffffff; }.iguru_module_social #soc_icon_6382d06f826c91:hover{ color: #2c8fa0; }.iguru_module_social #soc_icon_6382d06f826c91{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6382d06f826c91:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6382d06f826e82{ color: #ffffff; }.iguru_module_social #soc_icon_6382d06f826e82:hover{ color: #2c8fa0; }.iguru_module_social #soc_icon_6382d06f826e82{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6382d06f826e82:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6382d06f826fe3{ color: #ffffff; }.iguru_module_social #soc_icon_6382d06f826fe3:hover{ color: #2c8fa0; }.iguru_module_social #soc_icon_6382d06f826fe3{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6382d06f826fe3:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6382d06f827104{ color: #ffffff; }.iguru_module_social #soc_icon_6382d06f827104:hover{ color: #2c8fa0; }.iguru_module_social #soc_icon_6382d06f827104{ background: rgba(44,143,160,0.01); }.iguru_module_social #soc_icon_6382d06f827104:hover{ background: rgba(255,255,255,0.01); }