London, Jul 27 (PTI) Total antibody levels start to wane six weeks after complete immunisation with Pfizer and AstraZeneca vaccines, and can reduce by more than 50 per cent over 10 weeks, ...

London, Jul 15 (PTI) Patients who experience long COVID have reported more than 200 symptoms across 10 organ systems in what is dubbed the largest international study of COVID-19 “long-haulers” ...

London, Jul 9 (PTI) The risk of severe illness and death from SARS-CoV-2, the virus that causes COVID-19, is extremely low in children and teenagers, according to a comprehensive analyses of ...

London, Jun 24 (PTI) A single dose of Pfizer or AstraZeneca Covid-19 vaccine offers around 60 per cent protection against infection from SARS-CoV-2 in adults aged 65 years and above, according ...

New Delhi, Jun 4 (PTI) The risk of being infected with SARS-CoV-2, the virus that causes COVID-19, is substantially reduced for up to 10 months following the first infection with the virus, ...

.Porto, Portugal
Chelsea defeated Real Madrid in the semifinals. (Photo Credit: Twitter/@ChampionsLeague)

  • Chelsea will take on Manchester City on May 29 at Porto, Portugal
  • Ahead of the knockout stages, Chelsea sacked manager Frank Lampard
  • The London club roped in former Paris Saint-Germain boss Thomas Tuchel

.Munich, Germany
(Photo Credit: Twitter/@FCBayernEN)

  • Bayern Munich defeated Lazio 2-1 in the home leg and won 6-2 on aggregate
  • Robert Lewandowski and Eric Maxim Choupo-Moting scored either side of the interval
  • Bayern reached the last eight of UCL for the ninth time in their last 10 attempts

.Madrid, Spain
How Madrid's veterans would fare against more polished opposition remains to be seen. (Photo Credit: Twitter/@ChampionsLeague)

  • Real Madrid on Tuesday beat Atalanta 3-1 to win the tie 4-1 on aggregate
  • Karim Benzema opened the scoring after a error from the Atalanta keeper
  • On his return from injury, Sergio Ramos slotted home a penalty

.Budapest, Hungary
Repeating their double act from the first leg, Mohamed Salah and Sadio Mane both scored on Wednesday. (Photo Credit: Twitter/@LFC)

  • Liverpool eased past RB Leipzig into the UCL quarter-finals with a 2-0 win in Budapest
  • Jurgen Klopp said the win helps his team put their Premier League woes to one side
  • Reds sealed off the fixture with a 4-0 aggregate win

.Paris, France
Keylor Navas saved a penalty from Lionel Messi at the stroke of half-time. (Photo Credit: Twitter/@PSG_English)

  • PSG reached the UCL quarter-finals on Wednesday with a 5-2 aggregate win against Barcelona 
  • The club from the French capital secured a 1-1 draw against the Lionel Messi-led side
  • Kylian Mbappe become the youngest player to score 25 goals in the tournament