However, a medical test report has claimed that fruit bats may not be the carrier of the deadly brain-damaging Nipah virus that has killed 13 people and infected 20 in Kerala. "But it has not been tested on humans", said ICMR Director General, Dr Balram Bhargava, while clarifying that it will not lead to creation of vaccine.
According to an IANS report, officials said that 21 samples from bats and pigs were sent to the High Security Animal Diseases laboratory at Bhopal but all turned out to be negative.
The minister said the origin of Nipah virus in Kozhikode has been centered in one place.
The latest victim was identified as 26-year-old Ebin, who was admitted at a private hospital in Kozhikode with infection.
According to the World Health Organisation (WHO), these signs and symptoms can progress to coma within 24-48 hours. In 2004, humans were infected as a result of consuming date palm sap that had been contaminated by infected fruit bats. "The team chose to send the cerebral spinal fluid, secretion from throat, blood and urine samples to the Manipal Centre for Virus Research on May 18".
Allaying fears on the outbreak of nipah virus in the state, the Assam Health department on Friday has stated that there is no reason for panic but warned against eating fruits and said pork should be eaten only after boiling it thoroughly.
Historically, the virus had largely remained in a cluster, meaning it was mostly confined to an area, and affected those that came in close contact to the patients, the experts said.More news: Ronaldo hints he will quit Real Madrid after Champions League final win
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In the meantime, the doctors also enquired about the health of other members of Salih's family and discovered that Salih's brother, Muhammed Sabith, had died on May 5 at Kozhikode Medical College Hospital after showing the same symptoms.
A majority of the deaths have been reported from Kozhikode in Kerala, while the others from nearby Malappuram district.
Fruit bats are the natural host of NiV.
In some cases human-to-human transmission has also been documented.
In India the disease was first reported in eastern West Bengal state in 2001. "Mohap alerts the people travelling to Kerala to be aware of possibly of contracting the infection and advises them to postpone unnecessary travel till the situation will be controlled", it added.
Early symptoms resemble those of influenza - fever, muscle ache, headache, drowsiness, respiratory illness, disorientation and mental confusion.