Editorial: Mr Burnham’s choice of Ukraine for his first overseas visit as prime minister is loaded with meaning, and sends a strong message about his priorities on the global stage – not least to Donald Trump

The president’s empty advice that children should receive separate jabs against measles, mumps and rubella will only lead to less take-up by parents

Nobody wants to hurt a child. The howl of pain, the tears, the look of betrayed shock all make it very hard to deliver a cherished small person to the needle-wielding nurse. But that’s part of being a responsible parent. It becomes a lot tougher if mum or dad is being fed mixed and erroneous messages about the benefits and harms of vaccination.

Parents have to make a lot of decisions about what’s right for their child, from the school they should go to and the food they should eat to the hours they should spend on the phone or watching TV. In the US, Donald Trump wants them to add another: do they choose to give their children separate jabs against measles, mumps and rubella, involving six visits to the clinic, or should they opt for the combined MMR vaccine, which does the job in two? For decades, the vast majority of families have been taking the advice of doctors, accepting their assurance that the MMR vaccine is safe and very effective. But what are they to think when a US president announces that the triple jab could be “quite lethal” and signs an executive order advising states to offer separate vaccines?

The Trump administration’s ‘America first’ approach has contributed to the scale of the crisis now unfolding in one of the world’s poorest countries

For months health experts have warned that the scale of the Ebola outbreak in the Democratic Republic of the Congo (DRC) could surpass the one that swept west Africa in 2014-16. This week, the authorities in the DRC announced that a grim milestone has already been passed: at least 2,325 people have died from the virus, making it the deadliest of the country’s 17 outbreaks and the fastest-growing in history.

There is no effective vaccine against Bundibugyo – a rare strain of the virus that spread fatally undetected during the spring, often being misdiagnosed as malaria or typhoid. In contrast to neighbouring Uganda, which succeeded in eliminating an outbreak, multiple factors are combining to let the disease rip through the DRC. The worst-affected region is contested by armed groups, and a context of population displacement and chronic insecurity has made monitoring and surveillance more difficult. Ebola treatment centres have been attacked as a result of misinformation and community distrust.

Editorial: Faced with an increasingly bellicose Russia that is threatening ‘consequences’ over the UK’s military support for Ukraine, a substantial increase in defence spending will likely more than pay for itself

Editorial: Putin is hitting back hard after Ukraine showed it can strike deep into Russian territory. Without the weapons to defend itself, it is the Ukrainian people paying the price