Every year more than 100,000 people die of measles - even though there is a vaccine against it. Measles is one of the most infectious viruses in the world. There are still regular epidemics of the disease - including in Germany.
Australian researchers say they have found a causal link between prostate cancer and infections through human papillomavirus (HPV). The virus is usually associated with cervical cancer.
A number of candidate vaccines for COVID-19 use a genetic modification of the virus. It's a relatively new process that scientists say may be safer and cheaper than conventional vaccines. Aren't there any downsides?
A study of COVID-19 patients has found that they lost protective immunity within two to three months of recovery. Experts say that raises questions about social distancing, immunity passports and vaccines.
The number of new coronavirus cases around the world rose by over 228,000 over the past 24 hours — setting a new record. Countries are re-implementing lockdowns as the virus spreads. Follow DW for the latest.
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