[ad_1] Coronavirus updates: latest vaccine trials show promising results - BBC News BreakBreaking newsClose breaking news SummaryThe Oxford team developing a coronavirus vaccine says trials have shown a promising immune response in older people.Oxford Professor Pollard said there was "no competition" with other vaccines: multiple vaccines were needed to be successfulThree vaccines, Pfizer-BioNTech, Sputnik, and Moderna, have already reported good preliminary dataA scientist advising the UK government warns households that socializing at Christmas presents "substantial risks"The United States records more than 250,000 deaths from Covid-19 and nearly 11.5 million cases, as infections skyrocket across the country.More than 200 Facebook workers accuse the company of forcing staff to return to the office despite the risks of contracting coronavirus.NHS Wales chief warns it will take "several years" for waiting times to recover to pre-coronavirus levelsLive reportsRelated stories Morph.toInit.bundles.push(function() { Morph.versions["bbc-morph-lx-stream-v4@3.5.13"]={"bbc-morph-app-bridge":"2.2.0","bbc-morph-classnames":"1.0.2","bbc-morph-cookie-config":"3.0.1","bbc-morph-cs-enriched-post":"1.3.10","bbc-morph-feature-toggle-manager":"1.0.3","bbc-morph-gel-icons":"5.0.7","bbc-morph-gnl-smp-adverts":"1.1.0","bbc-morph-gnl-smp-analytics":"1.1.0","bbc-morph-grandstand":"5.4.5","bbc-morph-image-chef-url-transformer":"2.1.0","bbc-morph-isequal":"1.0.0","bbc-morph-lazysizes":"1.0.1","bbc-morph-lx-adverts":"1.0.8","bbc-morph-lx-commentary-data-paged":"1.5.3","bbc-morph-lx-istats":"1.1.4","bbc-morph-lx-reactions":"3.0.2","bbc-morph-moment-ws-timezone-wrapper":"1.0.7","bbc-morph-news-translations":"2.2.4","bbc-morph-responsive-image-srcset":"3.0.1","bbc-morph-share-tools":"5.1.0","bbc-morph-smp":"7.0.0","bbc-morph-ws-typography-info":"1.0.6","morph-container":"4.0.0","morph-require":"3.0.17","react":"0.14.7","react-dom":"0.14.7"}; !function(e){function t(r){if(n[r])return n[r].exports;var o=n[r]={i:r,l:!1,exports:{}};return e[r].call(o.exports,o,o.exports,t),o.l=!0,o.exports}var n={};t.m=e,t.c=n,t.d=function(e,n,r){t.o(e,n)||Object.defineProperty(e,n,{configurable:!1,enumerable:!0,get:r})},t.n=function(e){var n=e&&e.__esModule?function(){return e.default}:function(){return e};return t.d(n,"a",n),n},t.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},t.p="",t(t.s=101)}([function(e,t){e.exports=React},function(e,t,n){"use strict";function r(e,t,n,r,o,a,i,s){if(!e){var l;if(void 0===t)l=new Error("Minified exception occurred; use the non-minified dev environment for the full error message and additional helpful warnings.");else{var u=[n,r,o,a,i,s],c=0;l=new Error(t.replace(/%s/g,function(){return u[c++]})),l.name="Invariant Violation"}throw l.framesToPop=1,l}}e.exports=r},function(e,t,n){"use strict";var r=n(7),o=r;e.exports=o},function(e,t,n){"use strict";function r(e,t){if(null==e)throw new TypeError("Object.assign target cannot be null or undefined");for(var n=Object(e),r=Object.prototype.hasOwnProperty,o=1;o