Warnings grow as Asian country battles major coronavirus surge that has seen it set new global records for daily infections

List features some of the nations worst-hit by COVID, including India; top health official says vaccines may offer less protection against Indian strain

Shai Alon said to have been detained at the request of Israeli authorities seeking his extradition; suspects accused of bringing a total of 150 kilograms of the drug into Israel

Top company scientist says original shot highly likely to still protect; Israeli study says it may be less effective against mutation but still protect against serious disease

Preliminary study shows shot may not prevent transmission of South African strain, or stop mild and moderate cases -- though it might curb serious cases and deaths

Scientists express concern over E484K strain, which Cambridge microbiologist warns 'could be the start of problems for spike vaccines' developed by Pfizer, Moderna

Sharon Alroy-Preis says unclear what impact vaccination has on COVID variant, but says it may offer less protection against mutation

British health minister sounds alarm over virus mutation found in South Africa, says 'it's even more of a problem' than the UK variant

British health minister warns latest virus version 'appears to have mutated further than the new variant that has been discovered' in the UK

Scientists studying whether existing coronavirus vaccines are effective against the new, more infectious strain, which is distinct from UK variant