These data demonstrate that seasonal and MF59-adjuvanted A/H5N1 influenza vaccines can be given as a mixed injection or by simultaneous separate injections without affecting immunogenicity or safety, supporting the feasibility of incorporating prepandemic MF59-adjuvanted A/H5N1 vaccines into seasonal influenza vaccination programs and the development of tetravalent influenza vaccines, including pandemic strains. Clinical Trials Registration. NCT00481065.
This investigation suggested that the outbreak probably occurred due to widespread colonization and suboptimal infection control and intravenous therapy practices. Cohorting successfully reduced the overall prevalence of K. pneumoniae colonization and, along with improved infection control practices, probably prevented K. pneumoniae BSIs
Familial hemophagocytic lymphohistiocytosis (FHL), is a rare autosomal recessive disorder characterized by an impairment of cytotoxic cells and uncontrolled activation of macrophages. This study presents the first description of four patients with FHL type 2 in Latin America. Patient 1 fulfilled the disease diagnostic criteria since 2 months of age, whereas patients 2, 3 and 4 exhibited the typical manifestations of the disease only later in their childhood. The PRF1 genetic analysis in these patients revealed two previously reported mutations: L17fsx50 and R54C. Interestingly, seven out of the 8 alleles evaluated here in patients carried the haplotype R54C/A91V, suggesting that this is a highly frequent FHL type 2 allele in Colombia. This haplotype confers residual cytotoxic function leading to late onset disease. Therefore, this report highlights the remarkable complexity of FHL diagnostic, emphasizing the importance of the genetic characterization of the disease.
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