text: There is an insufficient supply of whooping cough vaccine in Australia, according to Queensland Health. However, medical professionals insist the resource shortage will not affect the immunisation programs for babies, children and pregnant women. It comes less than a month after the death of 32-day-old Riley who died after contracting whooping cough. His parents Catherine and Greg are now leading a campaign, urging adults to vaccinate themselves and their children to prevent more infant deaths from the terrible disease. The adult whooping cough vaccine will not be available in Australia until July, according to ABC News. However, although whooping cough is less severe in adults, infected adults do pose a serious risk for infants and children who are not vaccinated. Scroll down for video . Riley Hughes died at just 32 days old after suffering complications arising from whooping cough . Two days before Riley died his mother posted a photo of him wrapped in a blanket in hospital . 'Heartbreaking to watch 4 week old Riley struggle,' Catherine Hughes wrote as she urged people to get themselves immunised . Riley's father Greg also posted a touching tribute on Facebook to his 'darling little angel Riley' 'The one product that is in short supply is not part of the formal national immunisation program, but is a booster dose that's used generally by GPs for adults,' Queensland Health senior medical officer Dr Alun Richards told ABC News. 'We have sufficient stocks to vaccinate children as part of the school-based vaccination program.' On March 15, two days before baby Riley died, his mother Catherine posted a devastating photo of her son wrapped up in a blanket in his hospital bed urging people to get themselves and their children immunised against whooping cough. 'If you haven't been immunised against whooping cough (pertussis) please consider getting it done. 'Heartbreaking to watch 4 week old Riley struggle with it at (Perth's Princess Margaret Hospital). Please keep him in your thoughts!,' she wrote. 'If you're anti-immunisation/anti-logic/anti-duty of care to your society as a whole, then feel free to take a look at this picture of my son in hospital right now at 4 weeks old with whooping cough - and then come and tell me how you think immunisation is a bad thing,' Riley's father Greg added. Dr Richards could not confirm why the shortage has taken place but told ABC that it is not abnormal. His mother Catherine Hughes posted a brave tribute to her baby boy and thanked Perth's Princess Margaret Hospital for doing 'everything they could to save his little life' 'I don't know whether it's because of increased demand in the world or if it's another issue, but there are vaccination shortages from time to time,' he said. 'There are other preparations on the market [and] they're not all in short supply.' For people opting to be vaccinated against whooping cough, they may be deferred by their GP until more supplies are available. 'These people can return when supplies are again available,' Dr Jeannette Young told ABC News. Infectious Diseases Expert at ANU Medical School Canberra, Sanjaya Senanayake, told Daily Mail Australia: 'From my point of view immunisation is wonderful particularly for whooping cough.' He explained infants are 'at a high risk of dying if they get infected' and that the death rate from whooping cough in infants under 6 months of age is about 1 per cent. 'It's important to listen to the experts,' Mr Senanayake said. 'Whooping cough is lethal in babies and in adults people can be absent from work for the persistent cough, it's a nasty infection.' Whooping cough (also known as 'pertussis') is a highly contagious bacterial infection of the lungs and airways. The government health website says the disease is 'highly infectious and most serious in babies under the age of 12 months'. Babies are at greatest risk of infection until they can have at least two doses of the vaccine (minimum 4 months old) as the mother's antibodies do not provide reliable protection. It's very rare for children who have been immunised against whooping cough to get the disease – and if they do, it's usually not as serious. Symptoms . The condition usually begins with a persistent dry and irritating cough that progresses to intense bouts of coughing. These are followed by a distinctive 'whooping' noise, which is how the condition gets its name. The early symptoms of whooping cough are often similar to those of a common cold and may include: . These early symptoms of whooping cough can last for one to two weeks, before becoming more severe. The second stage of whooping cough is often called the paroxysmal stage and is characterised by intense bouts of coughing. Each bout of coughing usually lasts between one and two minutes. Infants younger than six months may not make the 'whoop' sound after coughing, but they may start gagging or gasping, and may temporarily stop breathing. Information supplied by HealthDirect.gov.au . In 2013, the Department of Health report said that despite a long-standing immunisation program, 'pertussis remains highly prevalent in Australia and the least well controlled of all vaccine-preventable diseases'. 'Epidemics occur every 3 to 4 years. In unvaccinated populations, these outbreaks can be very large. In vaccinated populations, outbreaks are smaller, with greatly reduced mortality and morbidity, and may continue to occur every 3 to 4 years or be more widely spaced,' the report said. The devastated parents have set up a Facebook page that already has over 25,000 likes .
target: Queensland Health confirms there's a shortage of whooping cough vaccine .
  There is an insufficient supply of a booster which is used for adults .
  Medical professionals insist the shortage will not affect immunisation program for babies, children and pregnant women .
  It's Australia's least well-controlled of all vaccine-preventable diseases .
  Riley Hughes died in a Perth hospital at just 32 days old on March 17 .
  His parents are campaigning for adults to vaccinate themselves and their children to avoid other preventable infant deaths .
  Whooping cough is 'highly infectious' and lethal in babies .
  Immunisation against it is available for children from two months old .