"covid-19-antibodies"

The survey was conducted from April 1 to June 15 in the backdrop of "imminent danger of the third wave to the pediatric population," the Municipal Corporation of Greater Mumbai (MCGM) said

The woman, who has been breastfeeding the baby exclusively, received the second dose of the vaccine as per the normal 28-day vaccination protocol timeline.

The researchers said there is wide variation in how much antibody a person produces in response to vaccination or natural infection.

The findings which were published in Science Immunology identifies new links between the course of the disease and a patient's immune response to it

The results showed the number of people with antibodies fell by 26.5 percent over the approximate three-month period.

"The possibility of reinfections could have significant implications for our understanding of Covid-19 immunity, especially in the absence of an effective vaccine."