Examples Of Emerging Diseases

Re-emerging and emerging diseases especially those related to viruses all through history have comprised of the most feared plagues of the past. Although new infections continue to emerge today, many of the old plagues are still with us. (1) “Emerging” diseases can be defined as diseases / infections that have newly appeared in a population or have existed but are quickly increasing in geographic range or incidence. Among recent examples are Lyme disease, Hantavirus pulmonary syndrome, HIV/AIDS, and hemolytic uremic syndrome (a foodborne infection caused by certain strains of Escherichia coli). (2) Emerging diseases caused by viruses are a major threat to veterinary public health and humans. With new cases occurring approximately one each
A lot of emerging viruses have RNA genomes and as such are capable of selection of new variants in the face of environmental changes in host numbers and available target species and rapid mutation. Over the past two decades, there has been rising interest in the increasing number of viruses causing unexpected epidemics among humans, illness among livestock and wildlife. All too often outbreaks have seriously stretched both national and local resources at a time when health-care spending in the developed world who are economically strong has been constrained. Importantly, have the capacity to control and identify emerging diseases remains limited in underdeveloped regions where many of these diseases have their origin.
It killed 25% of the overall Aztec empire population and most of the Aztec army; and in 1918-1919 the Spanish influenza turned out to be the deadliest pandemic since it killed over 50-100 million people. All these diseases are among the diseases that have demonstrated what these have done and could do in the course their history. They remain imprinted in the collective sub consciousness of the people as a threat for the survival of human race. The vector Sometimes itself is the cause of phobias which are additional to the disease, as is the case for bats (e.g. Ebola haemorrhagic fever, Marburg haemorrhagic fever) and rats [e.g., Argentine haemorrhagic fever (AHF ), Black death] [6,7]. At certain times of history, epidemics were even interpreted as punishment (