Specific diseases which came in India from other countries




PLAGUE 

  • Bubonic plague is a deadly flea-borne diseases which is caused by  entero bacteria Yersinia pestis.

  • Primarily, spread by fleas that lived on the black rat (an animal that originated in South Asia) and spread to Europe by the sixth century.

  • Symptoms:   swelling of lymph node accompanied by a high fever and within 4 to 7 days of infection more than half of the victims would die.

  • The first outbreak of plague occur in China spread in two countries around the Indian Ocean Red Sea and Mediterranean.
MEASLES 

  • Highly contagious airborne virus spread by contact with oral and nasal  fluids.

  • Incubation period is 4 to 12 days.

  • Symptoms - runny nose, cough, red eyes, extreme high fever and  rashes.

  • Measles is an endemic disease means it is present in a community. In 1529 outbreak in Mexico killed two third of the population . in 1963 ,vaccine decline the number of reported occurrences by 98%.

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