The highest rate of infected persons was in Staten. A lower rate of infection was reported from Suffolk County and none were found in Fairfield County. This survey shows that, in areas with intense WNV activity in animals, asymptomatic human infection occurs at low levels and suggests that, in areas where there are many human infections, the rate of human infection may be higher. Season Influenza vaccination should continue since it may still afford protection, despite the United States being well into the flu season. The strains of virus which are circulating in this country appear to be well-matched by the strains used in this year s vaccine.
Influenza vaccine is still available.
The relatively low, but increasing level of influenza activity indicates that vaccination of persons susceptible to complications from influenza should continue. Likewise, close contacts of such persons, including healthcare providers and household members who care for high-risk persons, should continue to be vaccinated. A retrospective study of virus isolates from polio cases in Egypt found evidence of widespread circulation of type 2 vaccine-derived poliovirus. This outbreak is similar to the 2000 outbreak in the Dominican Republic and Haiti, which was associated with circulating type 1 vaccine-derived poliovirus. The key risk factor in both outbreaks was low rates of vaccine coverage.