CNN: Crucial Obamacare Provision Delayed Supporters of the employer mandate remember that most employers already provide medical health insurance to full time workers, and downplay the result the requirement would have on smaller businesses, citing statistics showing almost all small businesses employ less than 50 workers. But opponents claim the employer mandate is a potential work killer, saying businesses close to the 50-employee cutoff will be unlikely to ramp up hiring if it means they're required to provide employees medical health insurance . This article was reprinted from kaiserhealthnews.org with permission from the Henry J. Kaiser Family Foundation. Kaiser Health Information, an editorially independent information service, is a scheduled plan of the Kaiser Family members Foundation, a nonpartisan health care policy research firm unaffiliated with Kaiser Permanente.Serum Env IgA response rates and magnitudes were lower than those for IgG. Serum IgA responses to A1.Con gp140 , a positive correlate of an infection risk in the RV144 trial,27,31 were 43 percent . Response prices for neutralizing antibodies had been low and when present were only against tier 1 isolates, which can be more easily neutralized in vitro32 . Discussion Thirty years after the discovery of HIV, a safe and effective vaccine is not around the corner still.