1 ï Bijker and Pinch use the example of the plastic Bakelite to illustrate their idea of social forces at work in shaping technology.ï Bakelike: an early plastic, started out as an artificial substitute for varnish. ï 2  It was not a market success.
One dose of Tdap vaccine is recommended for: 1  Kids aged 7 to 10 years who who did not get all 5 doses of DTaP vaccine. 2  Adolescents aged 11 to 18 years (preferably at 11 or 12 years of age). 3  Pregnant women need to get Tdap vaccine at each pregnancy, even if they've been vaccinated before.
In 2006, the CDC strengthened recommendations that all pregnant women, healthy or not, should get a flu shot in any trimester. As of 2011, a pertussis-containing Tdap shot is also recommended for all pregnant women.