Skip to main content
. 2011 Nov 15;73(5):801–811. doi: 10.1111/j.1365-2125.2011.04142.x

Table 5.

Serious adverse events judged to be possibly, probably or definitely related to vaccination (i.e. serious adverse reactions)

Patient gender/age (years) Follow-up period event reported Received H1N1 vaccine Time from vaccination to onset of symptoms (days) Patient self report of symptoms Duration of symptoms (days) Patient sought medical attention Diagnosis Treatment received Symptoms Resolved Ongoing Treatment Possible alternative causes Relatedness
M/46 2 Y 7 Flu like symptoms 5 days. Admitted to hospital, shortness of breath and productive cough, flushed and sweating 5 Y (Hospital doctor) Lower respiratory tract infection Antibiotics Y N Viral infection Possibly
F/62 2 Y 53 Facial droop Ongoing at follow-up Y (GP) Bell's palsy Steroids N N NS Possibly
F/59 2 Y 12 Epileptic seizure, post-seizure paralysis in right arm and leg for 2 days. Had past history of epilepsy 5 Y (Hospital doctor) Epileptic seizure Medication NS Y Y NS Possibly
F/71 1 Y 14 Severe headaches, admitted to hospital with suspected meningitis. No meningitis found. Diagnosis- chronic migraines NS Y (Hospital doctor) Chronic migraines NS NS NS NS Possibly
M/39 1 Y 1 Pins and needles and numbness in hands, feet, legs and arms. Pins and needles and numbness left side of head, tongue, nose and lips, muscle weakness, poor co-ordination, lack of sleep, slurred speech, dizzy, light headed spells, migraines, extreme tiredness. NS Y (Hospital doctor) Seen by neurologist- suggested nerve fibre damage NS NS NS NS Probably
F/38 1 Y 2 Swelling at injection site, painful and hard. Felt unwell, flu like symptoms. Had three seizures. Admitted to hospital, no history of previous seizures. Had CT scan – normal. Patient had allergy to eggs. Suffered muscular damage during seizures – causing severe back pain. Ongoing at follow-up Y (Hospital doctor) Epileptic seizures NS NS NS Allergy to eggs Possibly
F/48 2 Y 32 Chronic fatigue, dizzy turns Ongoing at follow-up Y (GP) ? Anaemia/ problem with thyroxine concentrations Medication NS N Y Unknown Possibly
M/57 2 Y 2 Pulmonary embolism 37 days Y (Hospital doctor) Pulmonary embolus Medication NS Y Y Had hernia repair prior to immunisation. Possibly
F/56 1 Y 6 Skin inflamed and red, area spreading, then developed white itchy spots in same area 18 days Y (Hospital Dr) Local reaction to vaccine Antibiotics Y N Vaccine Definitely

NS = not specified