Seat pitch and comfort of a staggered seat configuration.

Background: Staggered seats are a solution for the Flying-V aircraft, where the cabin's longitudinal axis has a 26 degrees angle with respect to the direction of flight, to compensate for an otherwise oblique sitting position. However, little is known on acceptable pitches in this staggered configuration.

Objective: The goal of this research is to evaluate the comfort of different pitches for seats that are staggered relative to the cabin's longitudinal axis.

Rubella-vaccinated students. Follow-up in a public school system.

In a 7 1/2-year follow-up evaluation of the duration of rubella-vaccine-induced immunity of students who received either HPV-77 DK-12 or Cendehill vaccine, both groups showed a continous decline in hemagglutination-inhibition antibody from seven weeks after vaccination but a lower decline between 4 1/2 and 7 1/2 years after vaccination. However, at 7 1/2 years only 16 students (8%) receiving the Cendehill vaccine and one student (0.5%) receiving the HPV-77 DK-12 vaccine lacked detectable antibody.

Evaluation of influenza A/New Jersey/76 split-product virus vaccine in a summer camp.

An evaluation of two doses of split-product A/New Jersey/76 virus vaccines was conducted at a boys' summer camp. Two doses of either 200 chick cell-agglutinating (CCA) or 400 CCA units of vaccine were administered four weeks apart. There were no significant side effects.

Evaluation of a live, attenuated recombinant influenza vaccine in high school children.

A live, attenuated, recombinant influenza vaccine (Alice strain) administered intranasally was evaluated in high school students and compared with intranasal placebo and subcutaneous, inactivated, bivalent influenza vaccine. The Alice strain was antigenic, increasing the geometric mean titer (GMT) from a prestudy level of 30.2 to a postvaccine level of 189.

Rubella and measles serosurvey among a nonurban pediatric population.

A serologic survey for rubella and measles immunity was conducted to determine the immunity levels among a nonurban, relatively isolated pediatric population. Among 1,273 students in grades kindergarten through 9, the overall susceptibility rate was 24.3% for rubella and 16.