Ordinary symptoms like fever and headache followed by drowsiness, weakness, lethargy and confusion occurs.
The deadly Nipah virus has so far claimed 10 lived in Kerala. "All cases are linked to the one family in Kozhikode - those who came in contact with them", Rajeev Sadanandan, Additional Chief Secretary, Health and Family Welfare Department in Kerala, told CBS News.
"I think I am nearly on my way".
"Take care of our children", wrote Puthusheri, who was infected with Nipah virus while caring for sick patients. But movement of people from one district to another could spread the virus, fears Ravi Kurup, a caterer who is scheduled to visit his native state after his daughter's Std XII board results.
"He was on ventilator support for a week and died today morning", Kerala state health director Sarita R.L. told AFP of Moosa, 60. I don't think I will be able to see you. "Please. With lots of love".
While 18 people with specific symptoms are admitted at hospitals in Kozhikode, 22 patients with suspected Nipah cases, all from Malappuram district, are admitted at Kozhikode Medical College for observation.
Suparna Bharadwaj, the principal of the school, said, "In this situation, there is a panic in the people after this episode, as the way the bats are dying, Napa Virus's fears can not be sidelined". A health department official said the distribution of protective gear in hospitals began on May 19. The virus has also been isolated from environmental samples of bat urine and partially eaten fruit in Malaysia.
Two "control rooms" in the worst-hit Kozhikode district have been set up to closely monitor the spread of the virus. It said that a detailed advisory, with preventive measures and common signs, would be issued soon.
There is now no vaccine or treatment to tackle Nipah, which has a mortality rate of around 70 percent.
"The virus spreads fast and leads to death in 70 per cent cases", said Delhi-based Dr. N.P. Gupta. Some 50 people died in the first two outbreaks. "The presence of Nipah virus was not confirmed at that time", said Saseendran, the health inspector at the hospital.
The world's second most populous country suffers hundreds of deaths from infectious diseases every year because of weak disease surveillance and infection control systems, leading health experts to worry about the risks of such outbreaks.