Sentences with phrase «reduced vaccine effectiveness»

The authors note that manufacturing strategies may also play a significant role in reduced vaccine effectiveness.

Not exact matches

Flu vaccine effectiveness can vary widely from year to year since scientists essentially have to try and predict which strains will be most prevalent, but is generally found to reduce flu illness risk by 40 % to 60 %.

Researchers also have found medication like Paracetamol can reduce the effectiveness of the vaccine.

The new formula's reduced effectiveness is most likely driving the recent epidemics of pertussis, says the study's lead author, Nicola Klein, co-director of Kaiser Permanente Vaccine Study Center in Oakland, Calif..

Typically, H3N2 moves from East Asia to Europe and the United States, but Shu said it is too soon to know whether the Perth - like subtype in circulation will make major inroads in the West or reduce the effectiveness of the seasonal vaccine.

Plausible vaccination scenarios with a durable vaccine, the researchers found, are clearly beneficial: such strategies would reduce annual dengue incidence by as much as 80 % within five years, and that annual vaccine effectiveness approaches 65 % by the end of the 20 - year forecast period.

But this proved disadvantageous because the structure of the mimotope can change retrospectively, leading to reduced effectiveness of the vaccine.

The bacterium that causes whooping cough, Bordetella pertussis, has changed in Australia — most likely in response to the vaccine used to prevent the disease — with a possible reduced effectiveness of the vaccine as a result, a new study shows.

There is no evidence that the pertactin - free strains are more harmful than other strains, and it is not yet clear whether they reduce the effectiveness of the vaccine in the short or long term.

Recent federal recommendations against offering the inhaled nasal influenza vaccine due to lack of effectiveness could lead to more flu illness in the U.S. if the inhaled vaccine becomes effective again or if not having the choice of the needle-less vaccine substantially reduces immunization rates, according to a new analysis led by University of Pittsburgh School of Medicine scientists.

Vaccinating older individuals is problematic, as the effectiveness of most vaccines decrease with age, with maximal responses often as low as 30 % in the over 70s.5 Nevertheless, vaccination programmes demonstrate the ability to reduce disease burden in the elderly as well as offering a tool to observe immune responses in vivo in humans.

However, the current protocol for puppy immunization uses a «scatter - gun» approach which results in puppies being vaccinated several times, increasing the risk of side effects and (strange but true) reducing the effectiveness of the vaccines.