Yes! In fact there are some vaccines available specifically designed for those who are ill such as Pediarix® which helps protect kids against pneumonia caused by pneumococcus bacteria while they are hospitalized. Additionally there are other vaccines available which help prevent disease in those who may be vulnerable due to being ill such as MMRV® which helps protect young children against measles mumps rubella virus infections; varicella zoster virus; adenovirus type 7; human coronavirus 229E; dengue fever; Japanese encephalitis virus; West Nile Virus; Zika Virus.