Page 188 - fourth year book
P. 188

COMMUNICABLE DISEASES




                                                   Introduction


               Communicable diseases are the major causes of mortality and morbidity

               in  the  Eastern  Mediterranean  Region  and  pose  major  impediments  to

               social  and  economic  well-being.  The  importance  of  communicable


               disease  control  has  increased  in  recent  years  as  a  result  of  increased

               travel, trade and migration.



               Communicable diseases occur in every country in every urban and rural

               area, and in every neighborhood, from the very rich to the very poor.


               In  the  Eastern  Mediterranean  Region,  the  WHO  2011  reported  that  the

               most important and prevalent communicable diseases are Vector-borne


               diseases  (particularly  malaria),  tuberculosis,  HIV/AIDS,  sexually

               transmitted infections, measles and vaccine-preventable diseases.



               In  Egypt,  the  WHO  reported  that  the  hepatitis  has  been  the  most

               widespread  and  serious  communicable  disease  over  the  last  25  years,

               followed by pulmonary tuberculosis and meningococcal meningitis.



               What are communicable diseases?


               Communicable  diseases  refer  to  infectious  diseases  that  caused  by  an

               agents, called pathogens, are easily spread by direct or indirect contact to


               travel from an infected carrier to a healthy individual. These pathogens

               include  viruses,  bacteria,  fungi,  and  parasites.  Some  pathogens  make

               toxins that harm the body's organs. Others actually destroy cells. Some


               can  impair  the  body's  natural  immune  system,  and  opportunistic

               organisms set up secondary infections that cause serious illness or death.






                                                           157
   183   184   185   186   187   188   189   190   191   192   193