Another virus, Chikungunya, has recently emerged in the Caribbean basin. This virus causes a disease similar to dengue virus and has the same mosquito vector. blog marketingowy  Chikungunyavirus was thought to be a cause of disease primarily in Southeast Asia and the Indian Ocean region. This is another example of the potential for rapid global spread of viral agent. New variants of the influenza A virus may have emerged through reassortment events between avian and human viral strains. In 2009, a triple reassortant H1N1 influenza A virus began a global pandemic that has continued into 2014. Two avian influenza A variants, H5N1 and H7N9, have been associated with high mortality in humans, primarily in China. H5N1 has been spread by birds from China to other parts of Asia and to Africa and blog marketingowy
has resulted in a small number of deaths there. Prompt destruction of a large number of
fowl at live poultry markets has thus far limited the spread of these viruses, but the specter
of mutation or reassortment leading to efficient person-to- person viral spread is of grave
concern. The early 1980s were a time of great optimism for the control of infectious diseases. This optimism has been replaced leczenie przeziębienia by the realization that infectious diseases will not disappear any time soon. However, recent advances in the war on AIDS sparked by the development of several increasingly potent antiviral agents, coupled with the recognition that treatment in discordant couples can prevent the transmission of HIV, have given new hope that HIV infection might be controlled. Haemophilus influenzae type b and Streptococcus
pneumoniae invasive disease have been brought under control in the developed world by
the widespread use of conjugated vaccines. Strategies are urgently needed to make access
to both of these vaccines global. Cases of many viral illnesses are in decline in the developed
world, again because of the development of new vaccines. Perhaps we have finally
reached the point where we fully recognize that we must be more judicious in our use of
antimicrobials or lose their value. New infectious diseases will continue to be recognized,
but so too will new strategies designed to prevent or diagnose and cure them. We must
also hope that humans will not pervert the great advances in understanding of molecular
biology of microorganisms to create chimeric “superbugs” which are both highly virulent
and highly drug-resistant dermatologia and endokrynologia
and can be used as weapons against fellow humans.