| influenza vaccination levels and influenza-like illness in long-term-care facilities for elderly people in niigata, japan, during an influenza a (h3n2) epidemic. | surveys on influenza vaccination and illness in long-term-care facilities in niigata prefecture during an influenza a (h3n2) epidemic revealed that >20% of facilities had outbreaks and >10% of residents experienced influenza. outbreaks and number of cases were significantly reduced by vaccination, which should be strongly recommended for institutionalized elderly people. | 2000 | 11089658 |
| the effectiveness of influenza vaccine against influenza a (h3n2) virus infections in nursing homes in niigata, japan, during the 1998-1999 and 1999-2000 seasons. | to evaluate the effectiveness of influenza vaccines against influenza-like illness (ili) among nursing home residents. | 2002 | 11893153 |
| antibody response to influenza vaccination in nursing home residents and healthcare workers during four successive seasons in niigata, japan. | to evaluate the antibody response to influenza vaccines in nursing home residents and healthcare workers (hcws) and its relation to residents' functional and chronic disease status during four successive seasons. | 2005 | 16323321 |
| molecular evolution of human influenza a viruses in a local area during eight influenza epidemics from 2000 to 2007. | a total of 1,041 human influenza a virus isolates were collected at a clinic in niigata, japan, during eight influenza seasons from 2000 to 2007. the h3n2 subtype accounted for 75.4% of the isolates, and the rest were h1n1. extremely high rates of amantadine-resistant strains of h3n2 subtype were observed in 2005/2006 (100%) and 2006/2007 (79.4%), while amantadine-resistant strains of h1n1 subtype were only detected in 2006/2007 (48.2%). sequence and phylogenetic analysis of the ha1 subunit of t ... | 2009 | 19153639 |