New Delhi, Jan. 13 -- Amid speculations about the body's immune response in Covid-19 recovered patients, new research has claimed that the recovered patients have antibodies to fight the disease for up to eight months - giving hope for the vaccine makers in India as the jabs may also be proven effective for a longer period, health experts said on Tuesday.

Till date, the common perception among the health fraternity was that the protective immunity is usually seen for three to five months, and then starts waning off.

"This is great news as it gives real hope for vaccine developers," Sandeep Nayar, Senior Director and HOD, Chest and Respiratory Disease at BLK Hospital in west Delhi, told IANS.

"We hope that once a vaccine or vaccines are...