How long immunity lasts from natural infection is one of the big questions of the pandemic. Recent global developments have scientists worried that the calculation is changing

PA doesn't acknowledge source of 2,000 Moderna vaccines, which Israel says it transferred; some doses to be sent to Hamas-ruled Gaza Strip

Agency says no reason to believe there are risks that would outweigh the benefits of vaccination for pregnant women; Israel already recommends inoculation in 2nd, 3rd trimesters

Pfizer CEO echoes Netanyahu, UK authorities in saying strains of coronavirus likely to remain around indefinitely

Health body previously gave similar recommendation on Pfizer-BioNTech shot, a position rejected by Israel amid a spike in serious cases

Biotech firm says it is nonetheless testing whether adding a second booster, to make 3 shots in total, could increase protection from new strains

Bloc's health commissioner says joint-buying strategy means countries already have enough doses to inoculate vast majority of population, but 'vaccinations need to speed up'

Survey of first 600 people to get second dose sees 70% report mild discomfort or localized pain, but no serious reactions; 13 suffer temporary facial paralysis after first shot

Over 2 million shots administered so far, but infections remain high, and strict lockdown may be extended beyond January 21

County to spend NIS 1 billion on purchasing units for its mass inoculation drive, roughly the cost of two days of lockdown, report says