Prof Eyre explained that we know from a previous study that antibody levels fall over time, but this latest study shows that there is some immunity in those who have been infected.
All the four doctors and nurses were symptomatic during the first infection period and were asymptomatic and had high titre (concentration of) antibodies during re-infection, sources pointed.
The three, all men, aged 49, 52 and 62 are now under treatment and observation. the manifestation of the disease has been found to be more severe among the patients this time.
“Based on knowledge of other coronaviruses, reinfection is to be expected, although at present the point at which an individual is likely to be susceptible to reinfection is not known,” notes the pape
'Samajwadi Party founder Mulayam Singh Yadav has tested positive for COVID-19, and is being monitored by doctors. As of now, there are no COVID symptoms in him,' the party tweeted.
With reports of the first case of Covid-19 reinfection in Bengaluru surfacing, experts doubt such a possibility.
A senior doctor from one of the two hospitals said it was not clear whether it was a "re-infection" or mere continuation of the earlier coronavirus infection.
Blood samples were analyzed from 30,576 people using various methods, and someone was counted as a case if at least two of the antibody tests were positive.
As concerns mount that herd immunity may not be enough to curb the COVID-19 pandemic, scientists in India and elsewhere said more studies are needed for a reliable inference.
ICMR Director-General Balram Bhargava said the Hong Kong case is a stray example and the reinfection can depend upon various factors.
This is the first time the state government has acknowledged that they have treated cases of virus reinfection.
Meanwhile, Ganesh Puja will not be allowed in public places across the district this year in view of the pandemic.
Considering the risk posed by such people, besides the asymptomatic and pre-symptomatic ones, the department has stressed the need for strictly implementing containment measures.