close on the heels of the dengue, yellow fever is threatening to break out in India, according to the World Health Organization. The Aedes aegypti mosquito which spreads the dengue fever can also carry the yellow fever virus, said the Heart Care Foundation of India, New Delhi. However, Pradeep Seth, head of the department of microbiology at the All India Institute of Medical Sciences, New Delhi, ruled out the threat, saying that since the dengue and yellow fever viruses belong to the same family, people develop cross immunity by contracting one of the diseases. Yellow fever is initially marked by fever, weakness, back pain, nausea and vomiting. Subsequently, the patient develops jaundice, cardiovascular instability, reduction in the amount of urine and haemorrhage. In severe cases, the fever can lead to seizures, stupor and coma.
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